Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 , for Press Metal Bintulu Sdn. Bhd. Date: June 2019

CHAPTER 6 EXISTING ENVIRONMENT

6.1 INTRODUCTION This section presents the existing environmental characteristics within 5 km radius from the Project site boundaries (Zone of Study). Information collected and sourced covered three (3) major components, namely physical, chemical, biological and human activities within the Project’s vicinity to provide an overview of existing environmental conditions of the surrounding the project site at the time of Study.

The Zone of Study extends 5 km from the boundary of the study area that covers the overall Press Metal premise including the Line 1 and Line 2 areas. In the event, the assessment impacts are found extending beyond the Zone of Study, the Zone of Study may be expanded where necessary.

6.2 PHYSICAL ENVIRONMENT Premise Physical Setting Lot 36 has total area of 480 acres (195 hectares) and is divided into three (3) blocks as shown in Figure 1-2 and Figure 5-1. Plant 1 is located in Block 1 which is located towards the northern section of Lot 36 while Plant 2 is sited in Block 2 Phase 1 which is located adjacent to Block 1 and in the middle section of Lot 36. Remaining of Block 2 is marked for Phase 2, i.e. for the Project, and for Phase 3, i.e. for future development, whereby both are located towards the southern section. In between Plant 1 and Plant 2, a 70 m buffer is provided and currently houses the supporting components for the operations, such as storage silos, weighing station and concrete batching plant.

The overall land terrain of Lot 36 is observed flat with Block 1 and Block 2 Phase 1 being occupied with buildings and structures. Landscaping is also observed surrounding the Plant 1 and Plant 2. At Project site, the land has been levelled. Vegetations comprising of shrubs were observed at Project site. Near to the Plant 2, some areas were being used for storage of leftover construction material and site office from Plant 2 development. These materials will be removed prior commencement of Project’s construction. Plate 6- 1 to Plate 6-6 shows the physical structure are components within Lot 36.

Plate 6-1 Existing Potline Building Plate 6-2 Existing Casthouse

Page 6-1 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Plate 6-3 Existing Anode Rodding Plate 6-4 Existing Storage Silo Workshop

Plate 6-5 Product Storage Area

Plate 6-6 Project Site Note: Date of images March 2018, January 2019

Page 6-2 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Samalaju Industrial Park Samalaju Industrial Park (SIP) is a 7,000 hectare-industrial area developed in 2009 under the Sarawak Corridor of Renewable Energy (SCORE) as one of its five economic development corridors being proposed to be developed over span from 2008 to 2030. SIP development was undertaken by the Regional Corridor Development Authority (RECODA) and currently under the jurisdiction enforcement of the Bintulu Development Authority (BDA).

SIP is located approximately 50 km towards northeast from Bintulu town, measured by direct distance, and is accessible by road, namely Jalan Coastal Bintulu-, with land distance approximately 70 km from Bintulu town. Prior to SIP development, the area was mainly oil palm plantation located along the coastal area.

As part of SIP planning, BDA has developed the supporting infrastructures and facilities for the industries. These include a dedicated port facility at SIP, centralised sewerage treatment plant, water treatment plant, electricity supply, telecommunication, social infrastructure as well as a new township, of which has been developed in phases over the years. Plate 6-7 to Plate 6-10 shows the current facility infrastructures at SIP.

Samalaju Industrial Port

Samalaju Industrial Port (Plate 6-7) has total area of 393 hectares and designed for handling up to 18 million tonnes of cargo per year. It commenced its initial operation in 2014 and being developed in phases as SIP progresses. It is now operated and managed by Bintulu Port Holdings Bhd.

The port is designed for handling seven major vessels at any one time with productivity capacity or cargo volume of 1,000 tonnes per hour by each of the four conveyor lines. It is fully equipped with sophisticated systems and equipment including handy size berth, handyman berth, barge berth, harbour crane, storage facilities, conveyer system, reach stacker, heavy and high mast forklift, excavator, cranes, wheel loader and many more. For Press Metal operation, the port is fitted with a conveyor system for transfer of alumina from the port to Press Metal, as described in Chapter 5.4.

Plate 6-7 Samalaju Industrial Port

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Power Supply

Power supply to SIP is by Sarawak Energy Berhad (SEB), an entity responsible for the generation, transmission and distribution of electricity in the Sarawak. Electricity supply is sourced from and with power generation capacity of 2,400 MW and 944 MW respectively.

Water Treatment Plant

Sungai Similajau raw water intake plant (Plate 6-8) was developed in 2015 with treatment capacity of 80 million litres per day (80MLD). The water treatment plant supplies treated water to all industries in SIP.

Plate 6-8 Water Treatment Plant

Sewerage Treatment Plant

A centralised sewage treatment plant (STP) (Plate 6-9) has been constructed and operated by the BDA since 2013. The STP was designed with treatment capacity of 25,000 PE catering to all industries in the SIP.

Plate 6-9 Centralised Sewage Treatment Plant

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Samalaju Eco Park Township

Samalaju Eco Park is an 810 hectare (2000 acre) eco-friendly township that was developed by Cahya Mata Sarawak Berhad, to support the development of SIP. In view of its distance from Bintulu, the township is aimed to serve the SIP commercially.

The first phase of the Samalaju Eco Park development consisting of low-density residential development with 16 blocks of 4-storey walk-up apartment (Plate 6-10), totalled to 256 units has now been completed. Development of two blocks of shop lot are also completed (Plate 6-10).

Plate 6-10 Samalaju Eco Park Township

Topography Prior to SIP development, the overall area was reported mostly undulating to slightly hilly land which was previously planted with oil palm or of secondary vegetation. Towards the coastal area and river (Sg Similajau) is relatively low lying (>20m above mean sea level (m.s.l.) Areas that have been developed for the industrial activities and Samalaju Port were filled up to platform levels. Topography map of SIP and Project area is shown in Figure 6-1.

The current Press Metal premise site occupies a large piece of land with area size of 487 acres (197 hectares). Plant 1 and Plant 2 areas were raised to platform level of 15 m above m.s.l. for its development. For the new Project, the proposed land area will be raised to same platform level.

Geology Project site and most of SIP are underlain by arenaceous and argillaceous sedimentary rocks, as well as coal and calcareous beds. This geology formation is a deposit of Neogene Age, a period encompasses the interval between 23 million and 2.6 million years ago. Geological map for the Project area is illustrated in Figure 6-2.

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Soil Soil map for Project area is depicted in Figure 6-3. Soil underlying Project site is mainly red yellow podzolic soils (northern section) and podzols (southern section).

Red yellow podzolic soils is characterized as shallow to deep, yellow to red loamy sands to clays; on sedimentary, acid igneous and metamorphic rocks on a gently sloping to steep land. Podzols is characterized as shallow to deep, pale-coloured sands with prominent subsurface accumulation of humus, or, locally, iron; on old or subrecent alluvium or coarse-textured sedimentary rocks on a flat to gently sloping land.

Hydrology and Hydrogeology SIP is located at the north end of Similajau River basin (Figure 6-5). Within the basin and at Project area, several river systems were observed, namely Similajau River, Siat River, and several unnamed river streams (Sg. Siod, Sg. Selungun and Sg. Haik). Sg Nyalau is observed north of SIP and reported flows northerly into the South China Sea.

Southern section of SIP which include the Press Metal premise has been developed into proper drainage systems and channelled the discharges into Similajau River, that is found towards the south of SIP.

Page 6-6 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Projection: WGS84 Source: Radar: ALOS- PALSAR

Figure 6-1 Topography Map of Project Site

Page 6-7 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Projection: WGS84 Source: Department of Mineral and Geoscience

Figure 6-2 Geology Map of Project Site

Page 6-8 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Project Site

Projection: WGS84 Source: Land and Survey Department Sarawak, 1968

Figure 6-3 Soil Map of Project Site

Page 6-9 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Project Site

Source: DID Sarawak

Figure 6-4 Sarawak River Basin

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North

Legend:

Press Metal

Project Site

Source: DID Sarawak

Figure 6-5 Similajau Basin

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Road Network Project site is connected to major towns via several road systems. Toward the southwest, accessibility to Bintulu town and is via Bintulu – Miri coastal road; while towards the northeast, accessibility to Niah and Miri town is via Similajau – Batu Niah road. Besides that, Project site is well connected to Pan-Borneo Highway via Bakun Junction, 27 km from the Project. Pan-Borneo Highway provides access to and connects Sarawak, Sabah, Brunei and Kalimantan.

Existing good road network within SIP provides ample land transport accessibility for the Project’s raw material and product distribution via Section A Road, Collector B1 Road, Boulevard Road and Bintulu-Miri Coastal Highway.

6.3 LAND USES Land use survey was undertaken within radius up to 10 km radius from Press Metal premise boundaries, with attention focussed within 5 km radius from the premise boundaries. Primary land uses information observed and collected was verified through input and consultation with the BDA. Other references such as the SIP Master Plan and latest satellite imagery are reviewed and referred to establish and ascertain the existing and future land use pattern of the study area.

Existing Land Use Land uses within 5 km radius from Project site are illustrated in Figure 6-6 and listed in Table 6-1, while land uses within 10 km from Project are illustrated in Figure 6-8.

Table 6-1 Land Uses 5 km from Project Site

Distance (km) Land Use No. Land Use Description / Direction Type from Project

1 Samalaju Industrial Port Logistics Industry 0.8 / N Malaysian Phosphate Phosphate 2 Industry 0.3 / E Additives (MPA) Manufacturing

3 Samalaju Lodge Residential Residential 0.4 / S Iwatani Sig Industrial Gas Industrial Gas 4 Industry 0.6 / SW Sdn. Bhd. Supplier Samalaju Café & 5 Commercial Commercial 0.3 / SW Restaurant

6 Samalaju Central Commercial Commercial 1.1 / S

7 BOMBA Institute Institute 1.2 / S

8 Samalaju Substation Infrastructure Infrastructure 1.0 / SW

Page 6-12 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Distance (km) Land Use No. Land Use Description / Direction Type from Project MH Hardware (Samalaju) 9 Hardware Supplier Industry 1.3 / SW Sdn. Bhd. Samalaju Lodge (Local 10 Residential Residential 0.8 / SW Camp) Pertama Ferroalloys Sdn. Ferrosilicon 11 Industry 1.3 / SW Bhd. Manufacturing Silicon 12 OCI Sdn. Bhd. Industry 0.6 / SW Manufacturing Sakura Ferroalloys Sdn. Ferroalloy 13 Industry 2.1 / SE Bhd. Manufacturing Silicon 14 PMB Silicon Industry 2.2 / SE Manufacturing

15 Substation Infrastructure Infrastructure 2.7 / SE

16 Sewage Treatment Plant Infrastructure Infrastructure 2.5 / S OM Materials (Sarawak) Ferroalloy 17 Industry 2.2 / SW Sdn. Bhd. Manufacturing Commercial / 18 Samalaju Resort Hotel Accommodation 2.5 / SW Residential Elkem Carbon Malaysia Electrode 19 Industry 3.0 / SE Sdn. Bhd. Manufacturing Silicon 20 Asia Advanced Material Industry 3.3 / SE Manufacturing

21 Water Treatment Plant Infrastructure Infrastructure 3.4 / SE

22 BDA Quarters Residential Residential 3.0 / SE

23 Similajau National Park National Park National Park 2.2 / S

24 Suburmas Palm Oil Mill Palm Oil Mill Industry 4.6 / SE Samalaju Eco Park 25 Residential Residential 6.0 / E Township Source: Land Use Survey, January 2019

Page 6-13 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Table 6-2 Residential Areas’ Population

No. of No. Residential Area Remarks Residences

1 Samalaju Lodge 1731

2 Samalaju Lodge (Local Camp) 982 24 household x 3

3 BDA Quarters 96 Note: assume 3 people per household 12 working officers including 3 4 BOMBA 12 officers on full time standby

5 Samalaju Eco Park Township No data Source: Samalaju Lodge, BOMBA, BDA

Land Use within 0 – 1 km

Immediate land use from Project site are mainly industries and industry supporting facilities. Industries observed here are Malaysian Phosphate Additives (under construction), Iwatani Sig Industrial Gas Sdn. Bhd. and OCI Malaysia Sdn. Bhd. These industries are generally compatible with Project activities. Industry supporting facility present is Samalaju Industrial Port.

Within SIP there are two temporary residential areas for industrial workers that are located within the same area. The Samalaju Lodge is located located 400 m towards the south of Project houses foreign workers while Samalaju Local Camp is found about 800 m towards the southwest of Project. Both lodges are developed and operated by Samalaju Properties Sdn. Bhd. Number of residences staying in the lodges are as listed in Table 6-2. Commercial activities are also present within 1 km of Project, namely Samalaju Café & Restaurant and Petronas petrol station.

Plate 6-11 Malaysian Phosphate Plate 6-12 Iwatani Sig Industrial Gas Additives Sdn. Bhd.

Page 6-14 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Plate 6-13 OCI Malaysia Sdn. Bhd. Plate 6-14 Samalaju Port

Plate 6-15 Samalaju Lodge Plate 6-16 Samalaju Lodge (Local Camp)

Plate 6-17 Samalaju Café & Restaurant Plate 6-18 Petronas Petrol Station

Page 6-15 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Land Use within 1 – 2 km

Predominant activities found here are mainly industries such as Pertama Ferroalloys Sdn. Bhd. and MH Hardware (Samalaju) Sdn. Bhd. Samalaju Substation for power distribution is also observed.

Commercial activity observed at the Samalaju Central, an 81-acre shop lots providing retail and commercial units to both small and medium enterprises while BOMBA station is observed located within the industrial area. This station was recently completed at the end of 2018. The fire station is occupied by 12 working officers, including three (3) officer on standby (Table 6-2).

Plate 6-19 Pertama Ferroalloys Sdn. Plate 6-20 MH Hardware (Samalaju) Bhd. Sdn. Bhd

Plate 6-21 Samalaju Substation Plate 6-22 Samalaju Central

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Plate 6-23 BOMBA station

Land Use within 2 – 3 km

Predominant land use is this radius is industries. Industries observed here includes Sakura Ferroalloys Sdn. Bhd., PMB Silicon and OM Materials (Sarawak) Sdn. Bhd. Supporting infrastructure observed within this area are substation and a centralised sewage treatment plant. Residential / commercial activity observed are Samalaju Resort Hotel. Similajau National Park’s northeast boundary is sited in this area, which is bounded by Similajau River.

Plate 6-24 Sakura Ferroalloys Sdn. Plate 6-25 OM Materials (Sarawak) Bhd. Sdn. Bhd.

Page 6-17 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Plate 6-26 Centralised Sewage Plate 6-27 Samalaju Resort Hotel Treatment Plant

Land Use within 3 – 5 km

Industries are the main land use within 3 – 5 km from Project site. These include Elkem Carbon Malaysia Sdn. Bhd., Asia Advanced Material and Suburmas Palm Oil Mill. Water treatment plant for SIP water supply is also present.

Agriculture activities were also observed here which comprises of palm oil plantation.

One residential area is sited in this area, i.e. BDA Quarters. There are in total seven blocks residential quarter ready for occupancy since mid-2018, nonetheless most units were still unoccupied. Currently only 12 units were reported occupied. Near Elkem Carbon Malaysia Sdn Bhd, abandoned palm oil plantation workers quarters are observed.

Plate 6-28 Water Treatment Plant Plate 6-29 BDA Quarters

Land Use beyond 5 km

Existing land use beyond 5 km of Project site are mainly agricultural (palm oil plantation) and residential areas. These residential areas include Samalaju Eco Park Township and rural settlements about 10 km northeast of Project, namely Kampung Kuala Nyalau and

Page 6-18 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Kampung Hulu Nyalau. Samalaju Eco Park Township which comprises of 16-block apartment units resided mainly by SIP workers, while the rural settlements are resided mainly by ethnic. In the southwest, main land use is Similajau National Park.

Plate 6-30 Samalaju Eco Park Plate 6-31 Kampung Hulu Nyalau Township

FUTURE LAND USE Future land uses in SIP is shown in Figure 6-7. There is no change in the land use within the Project site and in SIP overall as this has been gazetted in the SIP Masterplan. The current operating industries and proposed future are presented in Table 6-3 below:

Table 6-3 Existing and Proposed Industries in SIP

No. Name Description Existing Industries

1 Samalaju Industrial Port Logistics

2 Malaysian Phosphate Additives (MPA) Phosphate manufacturing

3 Iwatani Sig Industrial Gas Sdn. Bhd. Industrial gas supplier

4 MH Hardware (Samalaju) Sdn. Bhd. Hardware supplier

5 Pertama Ferroalloys Sdn. Bhd. Ferrosilicon manufacturing

6 OCI Malaysia Sdn. Bhd. Silicon manufacturing

7 Sakura Ferroalloys Sdn. Bhd. Ferroalloy manufacturing

8 PMB Silicon Silicon manufacturing

9 OM Materials (Sarawak) Sdn. Bhd. Ferroalloy manufacturing

10 Elkem Carbon Malaysia Sdn. Bhd. Electrode manufacturing

11 Asia Advanced Material Silicon manufacturing

12 Suburmas Palm Oil Mill Palm oil mill

Page 6-19 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

No. Name Description Proposed Industries

1 PMB Carbon Carbon anode manufacturing

2 Samalaju Industries Integrated additives, chemical complex

3 Elkem AS Silicon metal, micro silica manufacturing

4 Leader Universal Aluminium Aluminium, alloy rod manufacturing Ferro molybdenum briquette, sodium 5 Mak Moni Sdn Bhd sulphite manufacturing

6 SME Clusters -

7 Aimbest Steel Ferroalloy manufacturing

8 Sino Bumi Magnesium ingot manufacturing

10 Cosmos Petroleum Mining Polysilicon manufacturing

11 Wenan Steel (M) Sdn Bhd Steel manufacturing

12 South Sea Energy Pte Ltd Energy

13 Indo Mal Ferro Alloys Sdn Bhd Ferroalloy manufacturing Source: Samalaju Masterplan, 2018

Page 6-20 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Legend: 5 km

Press Metal

4 km Project Site (Plant 3)

1 Samalaju Port 3 km 2 Malaysian Phosphate Additives 3 Samalaju Lodge 4 Iwatani Sig Industrial Gas Sdn Bhd 2 km 5 Samalaju Café & Restaurant 6 Samalaju Central 7 BOMBA 1 km 8 Samalaju Substation 25 9 MH Hardware (Samalaju) Sdn Bhd 1 10 Samalaju Lodge (Local Camp) 2 11 Pertama Ferroalloys Sdn Bhd 12 OCI Malaysia Sdn Bhd 13 Sakura Ferroalloys Sdn Bhd 14 PMB Silicon 15 Substation 12 16 Sewage Treatment Plant 12 5 17 OM Materials (Sarawak) Sdn Bhd 4 18 Samalaju Resort Hotel 3 13 10 19 Elkem Carbon Malaysia Sdn Bhd 18 9 11 6 19 20 Asia Advanced Material 8 14 21 Water Treatment Plant 7 22 BDA Quarters 20 15 23 Similajau National Park 17 24 Suburmas Palm Oil Mill 24 16 22 25 Samalaju Eco Park Township 21 Industry 23 Residential

Institution / Commercial Infrastructure National Park

Projection: WGS84 Source: Updated from Pleaides Imagery, 2019

Figure 6-6 Land Use 5 km from Project Site

Page 6-21 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

North

Legend:

Press Metal

Project Site (Plant 3)

1 Samalaju Industrial Port 2 Malaysian Phosphate Additives 3 Samalaju Lodge 4 Iwatani Sig Industrial Gas Sdn. Bhd. 5 km 5 Samalaju Café & Restaurant 4 km 1 3 km 6 Samalaju Central 2 km 1 km 1 25 7 BOMBA 8 Samalaju Substation 2 9 MH Hardware (Samalaju) Sdn. Bhd. 10 Samalaju Lodge (Local Camp) 12 11 Pertama Ferroalloys Sdn. Bhd. 5 13 4 3 12 OCI Malaysia Sdn. Bhd. 10 19 13 Sakura Ferroalloys Sdn. Bhd. 18 9 6 14 14 PMB Silicon 11 8 7 15 20 24 15 Substation 16 16 Sewage Treatment Plant 17 22 17 OM Materials (Sarawak) Sdn. Bhd. 21 18 Samalaju Resort Hotel 19 Elkem Carbon Malaysia Sdn. Bhd. 20 Asia Advanced Material 23 21 Water Treatment Plant 22 BDA Quarters 23 Similajau National Park 24 Suburmas Palm Oil Mill 25 Samalaju Eco Park Township

Industry Residential

Institution / Commercial Infrastructure National Park

Source: Samalaju Masterplan, Feb 2018

Figure 6-7 Land Use 5 km from Project Site

Page 6-22 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

North

Legend:

6 Press Metal

Project Site (Plant 3)

1 Samalaju Eco Park Township 6 2 Tawakal Sejati Plantation 7 3 Suburmas Plantation 4 Sahua Enterprise Plantation 5 Imbok Enterprise Plantation 6 Kampung Kuala Nyalau 7 Kampung Hulu Nyalau 8 Similajau National Park 1 2

5

3

4

8

8

Residential

Agriculture

National Park

Projection: WGS84 Source: Updated from Pleaides Imagery, 2019

Figure 6-8 Land Use 5 – 10 km from Project Site

Page 6-23 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

6.4 HUMAN DEMOGRAPHIC PROFILE Administratively, is one of the twelve administrative divisions in Sarawak. Within the Bintulu Division, it is divided into three (3) main districts – , District and Sebauh Sub-District. Samalaju area falls under the jurisdiction of Bintulu District. Review of the human demographic profile for Bintulu District are summarised below.

Ibans were reported being the dominant ethnic group in Bintulu Division and in the Bintulu District. Based on the 2010 Population and Housing Census, Iban accounted for 43% of the total population, nonetheless they are mainly found in the rural areas while the (or Melanau Bintulu/Vaie people) are concentrated at the town areas in Bintulu and rural communal areas, namely at Bintulu town (source: https://en.wikipedia.org/wiki/Bintulu_Division). Total overall population in Bintulu Division was report to be 220,048 while the population of Bintulu District was report to be 189,146 (source: 2010 Population and Housing Census).

Other major races in Bintulu District are the Chinese, and Melanau. Due to vast development of industrial activities in Bintulu and its surroundings, it was estimated that the Malaysian citizens accounts for approximately 80% of the population, while the remaining 20% are non-citizens. Table 6-4 summarises the ethnic distribution in Bintulu District in year 2010.

Table 6-4 Ethic Groups Distribution of Bintulu District, 2010

Bintulu District Ethnic Group Population % Bumiputera Malay 20,380 10.90% Iban 75,141 39.70% Bidayuh 2,292 1.20% Melanau 17,528 9.30% Other Bumiputera 11,785 6.20% Non-Bumiputera Chinese 32,078 16.80% Indians 444 0.20% Others 744 0.40% Non-Malaysian Citizens 28,754 15.20% Total 189,146 100% Source: Dept. of Statistics, 2010

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Table 6-5 summarises the gender distribution of Bintulu. Bintulu has a dominant male population, with a gender ratio of 119 male for every 100 females. The higher number of males in Bintulu District may be due to the industrial nature of employment in the area.

Table 6-5 Gender Distribution and Households of Bintulu, 2010

Household Division Male Female Total Ratio Households Size Bintulu District 99,489 83,913 183,402 119 40,222 5 Source Dept. of Statistics, 2010

Bintulu Division reported a total number of 47,286 in 2010, of which 40,222 households reside in Bintulu District. The average household size was five, slightly higher than the State’s average of four.

Age Structure Table 6-6 presents the age structure of the population Bintulu Division for 2010. Approximately 29% of the population of Bintulu falls into the age group of 15 and below and is typical of a growing population. The Division has the greatest proportion of persons between age 15-64 age group (68%) while only 3% fall within the age group 65 years old and above.

The dependency ratio is the ratio of the number of persons falling in the age groups of 15 years and below and 65 years, compared to the number of persons in the working age group 15-64 years. The dependency ratio for Bintulu is 47.3 per 100 persons.

Table 6-6 Age Structure of Sarawak and Bintulu, 2010

Age Group Bintulu Division % Bintulu District % 0-4 18,199 9% 15,793 9%

5-9 22,471 11% 18,808 10%

10-14 20,862 10% 18,422 10%

15-19 20,616 10% 18,029 10%

20-24 24,844 12% 21,135 12%

25-29 22,970 11% 20,003 11%

30-34 16,993 8% 14,950 8%

35-39 16,736 8% 15,090 8%

40-44 13,547 6% 11,990 7%

45-49 11,602 5% 9,340 5%

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Age Group Bintulu Division % Bintulu District % 50-54 7,935 4% 6,754 4%

55-59 5,284 2% 4,424 2%

60-64 4,063 2% 3,251 2%

65-69 2,649 1% 2,086 1%

70-74 1,675 1% 1,326 1% 75 and above 2,548 1% 2,001 1%

Total 212,994 100 183,402 100 Source: Dept. of Statistics, 2010

6.5 METEOROLOGY General climate at Project site is similar to Peninsular Malaysia, with high annual rainfall and relatively uniform high humidity and temperature. Two distinct monsoon seasons are experienced at Project site, i.e. northeast monsoon and southwest monsoon with monsoon transition period between the two seasons. According to Dale, 1956, 1959, four seasons can be recognized within any year: -

a) Northeast Monsoon (November until March), b) Intermonsoonal or transitional season (April to May), c) Southwest Monsoon (May to September), and d) Intermonsoonal of transitional season (October to early November).

Daily weather pattern at Project site is subjected to prevailing season, despite general uniformity in climate throughout the year. The climate data of the project site were based on the meteorological data collected from the nearest meteorological station, i.e. Bintulu Meteorological Station (3° 07' 12" N, 113° 01' 29" E), located at and operated by the Malaysian Meteorological Department (MMD).

Rainfall Rainfall data of Bintulu Meteorological Station were obtained (Table 6-7 – Table 6-9), which comprise of monthly rainfall (mm) and number of rain day in a particular month for period of 11 years (2008 – 2018). The recorded annual mean rainfall was 4013.2 mm with annual mean rain day of 225 days per year. The monthly rainfall pattern at Bintulu area is shown in Chart 6-1. The monthly rainfall and rain day peaks in January. The wetter season lasts four (4) months, from October to February.

Page 6-26 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Chart 6-1 Rainfall Trend (2008 – 2018)

Rainfall and Rainday 2008 - 2018 1400.0 35

1200.0 30

1000.0 25

800.0 20

600.0 15 Rainday

Rainfall (mm) Rainfall 400.0 10

200.0 5

0.0 0 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

Mean Rainfall Max Rainfall Min Rainfall Mean Rainy Day Min Rainy Day Max Rainy Day

Table 6-7 Monthly Rainfall Record

Month Year Annual Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

2008 365.6 514.0 481.6 452.0 302.0 224.8 585.8 566.2 549.6 299.0 466.4 607.2 5414.2

2009 1199 373.4 337.0 254.6 238.8 208.0 70.2 421.2 129.2 357.2 482.8 509.2 4581.0

2010 475.0 133.2 135.6 365.4 242.8 304.2 455.6 441.4 510.2 454.0 523.0 315.2 4355.6

2011 505.2 232.0 379.4 211.8 182.8 386.2 152.8 225.4 236.0 328.4 238.8 331.0 3409.8

2012 503.0 338.0 187.8 338.8 112.8 226.2 426.0 169.0 184.0 485.2 482.8 482.6 3936.2

2013 408.0 617.0 291.2 253.0 214.0 140.6 114.0 336.6 268.8 209.8 370.0 780.0 4003.0

2014 592.2 165.6 83.0 301.8 189.2 140.0 170.4 410.0 188.6 357.0 540.8 492.8 3631.4

2015 700.0 164.2 54.2 252.6 249.8 240.4 79.2 289.2 124.0 293.2 658.6 353.6 3459.0

2016 303.0 256.6 174.6 136.8 250.4 101.8 364.6 212.8 268.0 478.8 362.0 305.2 3214.6

2017 292.6 341.6 505.6 110.8 326.2 270.2 136.2 571.8 365.6 160.8 349.2 380.0 3810.6

2018 505.4 501.8 345.0 475.4 354.4 368.8 262.2 116.2 227.4 270.6

Avg. 531.8 330.7 270.5 286.6 242.1 237.4 256.1 341.8 277.4 335.8 447.4 455.7 4013.2 Source: Meteorological Department, 2008-2018

Page 6-27 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Table 6-8 Number of Rainfall Record

Month Year Annual Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

2008 20 22 26 23 13 17 23 21 19 18 22 28 252

2009 30 17 22 15 16 13 12 14 12 19 24 24 218

2010 22 10 17 21 20 19 24 14 22 21 23 26 239

2011 25 19 25 17 16 19 13 17 17 21 18 22 229

2012 23 21 21 21 12 9 19 17 9 23 23 23 221

2013 17 21 13 19 20 11 14 17 20 14 24 28 218

2014 24 8 7 20 17 11 15 21 12 17 24 19 195

2015 26 16 12 14 13 18 13 22 16 19 25 20 214

2016 12 20 21 18 21 15 19 13 20 20 23 19 221

2017 19 20 18 17 20 18 15 20 23 19 24 22 235

2018 27 19 20 20 15 15 11 15 20 20

Avg. 22 18 18 19 17 15 16 17 17 19 23 23 225 Source: Meteorological Department, 2008-2018

Page 6-28 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Table 6-9 Summary Record of Rainfall and Rain Day

Rainfall Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual (mm) Mean 531.8 330.7 270.5 286.6 242.1 237.4 256.1 341.8 277.4 335.8 447.4 455.7 4013.2 Highest 1199.4 617.0 505.6 475.4 354.4 386.2 585.8 571.8 549.6 485.2 658.6 780.0 7169.0 Year of 2009 2013 2017 2018 2018 2011 2008 2017 2008 2012 2015 2013 - Highest Lowest 292.6 133.2 54.2 110.8 112.8 101.8 70.2 116.2 124.0 160.8 238.8 305.2 1820.6 Year of 2017 2010 2015 2017 2012 2016 2009 2018 2015 2017 2011 2016 - Lowest No. of Rain Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Day Mean 22 18 18 19 17 15 16 17 17 19 23 23 225 Highest 30 22 26 23 21 19 24 22 23 23 25 28 286 Year of 2010, 2008, 2009 2008 2008 2008 2016 2010 2015 2017 2012 2015 - Highest 2011 2013 Lowest 12 8 7 14 12 9 11 13 9 14 18 19 146 Year of 2014, 2016 2014 2014 2015 2012 2012 2018 2016 2012 2013 2011 - Lowest 2016 Source: Meteorological Department, 2008-2018

Page 6-29 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Temperature and Relative Humidity The long-term monthly temperature data recorded at the Bintulu Meteorological Station (Table 6-10) were in the range of 25.3°C to 28.1°C. The annual temperature was relatively uniform through years 2008 to 2018 with averaging about 26.9 °C.

The Relative humidity in the general vicinity of the project is also fairly constant over the period. Records maintained at Bintulu Meteorological Station indicate an annual 24-hour average level of 85.5%.

Chart 6-2 shows the long term 24-hour mean annual temperature.

Table 6-10 Temperature Record

Month Year Annual Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

2008 26.2 25.7 26.2 26.7 27.1 26.7 26.3 27.0 26.5 26.5 26.6 26.1 26.5

2009 25.5 26.4 26.6 27.4 27.5 27.5 27.1 27.2 27.3 26.8 26.8 26.7 26.9

2010 26.4 27.5 27.5 27.8 27.9 27.2 26.6 26.9 26.5 26.8 26.5 26.2 27.0

2011 26.0 26.1 26.4 26.7 26.9 27.0 27.1 26.8 26.7 26.6 26.8 26.4 26.6

2012 26.3 26.4 26.5 26.9 27.5 27.0 26.7 26.9 27.0 26.6 26.8 26.9 26.8

2013 26.7 26.7 27.4 27.6 27.7 27.9 27.4 27.1 26.7 26.7 26.7 26.5 27.1

2014 25.4 26.3 27.0 27.1 27.4 27.7 26.9 26.2 26.8 26.4 26.3 26.3 26.7

2015 25.3 25.9 26.7 27.4 27.5 27.4 27.7 26.7 27.4 27.4 27.1 27.0 27.0

2016 27.6 27.4 27.6 28.1 27.9 27.0 26.7 27.5 26.6 27.0 27.1 27.1 27.3

2017 27.1 26.4 26.4 27.1 27.4 26.8 27.2 26.7 26.9 27.2 27.1 26.5 26.9

2018 26.0 26.2 26.8 27.2 27.4 27.3 27.4 27.7 26.6 26.7

Mean 26.2 26.5 26.8 27.3 27.5 27.2 27.0 27.0 26.8 26.8 26.8 26.6 26.9 Source: Meteorological Department, 2008-2018

Table 6-11 Mean Relative Humidity Record

Month Year Annual Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

2008 85.2 86.0 84.7 83.5 81.8 83.3 83.3 82.0 83.0 83.7 84.1 86.6 83.9

2009 88.7 84.6 82.5 82.3 81.8 80.2 79.9 80.6 82.8 82.2 85.4 84.9 83.0

2010 86.0 83.0 83.4 83.4 83.8 83.9 85.1 83.7 84.9 83.8 84.5 84.6 84.2

Page 6-30 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Month Year Annual Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

2011 86.0 85.7 85.5 85.4 84.5 86.7 85.5 86.3 85.6 86.4 85.1 86.9 85.8

2012 86.9 85.2 85.1 Def. 82.5 84.5 86.4 85.4 84.6 86.4 86.5 86.6 85.5

2013 85.8 86.7 83.9 85.6 85.7 83.4 82.2 82.9 85.5 84.5 86.7 88.8 85.1

2014 88.2 84.8 83.8 84.2 84.5 83.3 85.3 86.0 83.8 86.3 88.0 87.2 85.5

2015 90.5 87.4 85.3 85.4 84.1 86.5 82.7 86.9 86.4 86.0 87.9 87.9 86.4

2016 86.9 86.2 86.1 85.5 85.6 84.7 85.5 83.5 85.3 84.9 89.3 86.7 85.9

2017 86.8 88.7 89.4 88.0 88.0 88.1 84.9 85.7 87.0 85.7 88.1 89.2 87.5

2018 90.7 90.1 90.8 87.7 87.2 86.2 86.3 84.4 86.9 88.4

Average 87.4 86.2 85.5 85.1 84.5 84.6 84.3 84.3 85.1 85.3 86.6 86.9 85.5 Source: Meteorological Department, 2008-2018

Chart 6-2 Temperature and Humidity Trend (2008 – 2018)

Temperature and Relative Humidity 2008-2018 28.5 88.0 28.0 87.5

27.5 87.0 (%)

C) 86.5

° 27.0 ( ( 26.5 86.0 85.5 26.0 85.0 25.5 84.5 25.0

Temperature Temperature 84.0

24.5 83.5 Relative Humidity 24.0 83.0 23.5 82.5 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

Mean Temperature Max Temperature Min Temperature Relative Humidity

Page 6-31 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Table 6-12 Summary Record of Temperature and Relative Humidity

Temperature (ºC) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual

24 Hr. Mean 26.2 26.5 26.8 27.3 27.5 27.2 27.0 27.0 26.8 26.8 26.8 26.6 26.9

Highest Max. 27.6 27.5 27.6 28.1 27.9 27.9 27.7 27.7 27.4 27.4 27.1 27.1 27.6 2015, Year of Highest 2010, 2016 2010 2016 2016 2013 2015 2018 2015 2015 2016, 2016 - Max. 2016 2017 Lowest Min. 25.3 25.7 26.2 26.7 26.9 26.7 26.3 26.2 26.5 26.4 26.3 26.1 26.3 2008, Year of Lowest Min. 2015 2008 2008 2011 2008 2008 2014 2010 2014 2014 2008 - 2011 Relative Humidity Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual (%)

24 Hr. Mean 87.4 86.2 85.5 85.1 84.5 84.6 84.3 84.3 85.1 85.3 86.6 86.9 85.5

Highest Max. 90.7 90.1 90.8 88.0 88.0 88.1 86.4 86.9 87.0 88.4 89.3 89.2 88.6 Year of Highest 2018 2018 2018 2017 2017 2017 2012 2015 2017 2018 2016 2017 - Max. Lowest Min. 85.2 83.0 82.5 82.3 81.8 80.2 79.9 80.6 82.8 82.2 84.1 84.6 82.4 2008, Year of Lowest Min. 2008 2010 2009 2009 2009 2009 2009 2009 2009 2008 2010 - 2009 Source: Meteorological Department, 2008-2018

Page 6-32 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Wind The annual wind rose is based on the principal annual wind directions and speeds averaged over the period 2008 to 2017 at Bintulu Meteorological Station (Chart 6-3). The annual mean speed recorded is 1.8 m/s and the percentage frequency of calm is 5.0%. The predominant wind was blowing from east with percentage of 26.1% followed by wind blowing from southeast with percentage of 20.4%.Wind data indicated that 42.1% of the wind speeds are between 0.3 to 1.5 m/s, 43.7 % between 1.6 m/s to 3.3 m/s, 8.5% between 3.4 m/s to 5.4 m/s and the balance of 0.4% was in category of 5.5 m/s to 7.9 m/s. Meanwhile for seasonal wind, the dominant wind direction during the all seasons are rather consistent, blowing from east and southeast.

Chart 6-3 Annual and Seasonal Wind Rose

Source: Meteorological Department, 2008-2018

Page 6-33 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

6.6 ENVIRONMENTAL BASELINE Baseline or existing environmental conditions is established by conducting a direct sampling and measurements for air quality, noise levels, water quality and soil quality. Baseline environmental monitoring program is described in the following subsections. The monitoring program was carried out on 14 – 16 January 2019 at locations shown in Figure 6-9. The weather condition at Samalaju area during monitoring program is sourced from Bintulu Meteorological Station and is shown in Table 6-13.

Table 6-13 Weather Condition during Baseline Environmental Monitoring

Wind Humidity Wind Time Temp (°C) Speed Precipitation Conditions (%) Direction (km/h) Date: 14 January 2019 (Monday)

9:00 26 94 VAR 2.0 N/A am Mostly Cloudy

12:00 29 79 VAR 4.0 N/A pm Mostly Cloudy

4:00 31 70 VAR 9.0 N/A pm Mostly Cloudy

9:00 26 89 CALM 0.0 N/A pm Mostly Cloudy Date: 15 January 2018 (Tuesday)

9:00 26 94 SE 6.0 N/A am Mostly Cloudy

12:00 30 74 VAR 4.0 N/A pm Mostly Cloudy

4:00 31 75 NW 9.0 N/A pm Mostly Cloudy

Page 6-34 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Wind Humidity Wind Time Temp (°C) Speed Precipitation Conditions (%) Direction (km/h)

9:00 26 94 E 6.0 N/A pm Mostly Cloudy Date: 16 January 2019 (Wednesday)

9:00 26 94 VAR 6.0 N/A am Mostly Cloudy

12:00 32 70 VAR 4.0 N/A pm Mostly Cloudy

4:00 27 89 SSW 7.0 N/A pm Mostly Cloudy

9:00 25 100 VAR 6.0 N/A pm Light Rain Source: https://www.wunderground.com

Page 6-35 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

5 km

4 km

3 km

Legend:

2 km S Soil Sampling Location

Ambient Air Monitoring A 1 km Location

W1 Noise Level Monitoring N Location

River Water Monitoring W W2 N1 Station A1 S1 Acid Rain Monitoring R W3 R1 Station

W4 N2 A2 N3 A3

A4 N4

Projection: WGS84 Source: Updated from Pleaides Imagery, 2019

Figure 6-9 Baseline Environmental Monitoring Location

Page 6-36 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Air Quality In this EIA study, four (4) ambient air quality monitoring locations are identified, based on location of sensitive receptors surrounding Project site, as listed in Table 6-14 and shown in Figure 6-9. At these locations, ambient air quality was sampled for duration of 24 hours for parameters listed in Table 6-14. Ambient air monitoring was carried out on 14 – 16 January 2019.

Ambient air quality monitoring result are summarized in Table 6-15 and compared with Malaysian Ambient Air Quality Standards (MAAQS) 2020. Full laboratory analysis report is attached in Appendix D.

Table 6-14 Ambient Air Quality Monitoring Program

Monitoring Compliance / No. Monitoring Location Parameter Monitored Period Standard

A1 – Open space at • Particulate Matter < Project site 15 – 16 10 micron (PM10) 1 (3°33'09.1"N, January 2019 (24 hour average) 113°19'41.5"E) • Particulate Matter < A2 – Open space at 2.5 micron (PM2.5) Samalaju Lodge, 0.4 (24 hour average) 14 – 15 2 km from Project site • Carbon Monoxide January 2019 (3°32'35.7"N, (CO) (8 hour Malaysian 113°19'33.3"E) average) Ambient Air • Sulphur Oxides Quality A3 – Open space at (SO2) (24 hour Standard 2020 Samalaju Resort Hotel, 14 – 15 average) (MAAQS) 3 2.5 km from Project site January 2019 • Nitrogen Oxides (3°32'15.1"N, (NO2) (24 hour 113°17'45.6"E) average) A4 – Open space at • Hydrogen Fluoride BDA Quarters, 3.4 km (HF) (24 hour 15 – 16 4 from Project site average) January 2019 (3°31'12.7"N, • Total Fluoride (24 113°19'50.4"E) hour average)

Page 6-37 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Table 6-15 Ambient Air Quality Monitoring Result

Monitoring Location A1 – Open space at A2 – Open space at A3 – Open space at A4 – Open space at Project site Samalaju Lodge Samalaju Resort Hotel BDA Quarters MAAQS No. Parameter Unit (3°33'09.1"N, (3°32'35.7"N, (3°32'15.1"N, (3°32'25.1"N, 2020 113°19'41.5"E) 113°19'33.3"E) 113°17'45.6"E) 113°21'29.0"E) 15 – 16 January 2019 14 – 15 January 2019 14 – 15 January 2019 15 – 16 January 2019 Particulate Matter < 1 μg/m3 39 27 19 39 100 10 micron (PM10) Particulate Matter < 2 μg/m3 16 21 7 13 35 2.5 micron (PM2.5) Carbon Monoxide 3 mg/m3 4.3 2.1 2.1 2.1 10 (CO) Sulphur Oxides 4 μg/m3 <5 <5 <5 <5 80 (SO2) Nitrogen Oxides 5 μg/m3 <0.5 <0.5 <0.5 <0.5 70 (NO2) Hydrogen Fluoride 6 μg/m3 <20 <20 <20 <20 - (HF) Total 7 μg/m3 <0.01 0.85 0.85 2.12 - Fluoride Source: ESM, 2019

Page 6-38 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

In general, ambient air quality at monitored locations are in compliance with MAAQS limits.

3 PM10 are detected at concentration ranging from 19 μg/m (at Samalaju Resort Hotel) to 39 μg/m3 (at Project site and BDA quarters). It is to be noted during monitoring, no construction activities are carried out at all monitoring locations. PM10 and PM2.5 concentrations are measured below the respective 100 μg/m3 and 35 μg/m3 limits.

Carbon monoxide are detected at all locations, contrary to sulphur oxides and nitrogen oxides, which are below detection levels. At A2 and A3, total fluoride are measured at 0.85 μg/m3, while at A4, total fluoride is measured at 2.12 μg/m3. Under MAAQS 2020, there is no provision of fluoride concentration limits.

In summary, the monitoring result indicates air quality at the Project site and its surrounding area can be considered good and satisfactory as most of the monitored parameters were well within their respective standard limits.

Noise Level Baseline noise level is obtained via noise level monitoring program as described in Table 6-16, which comprises noise level measurement for 24 hours at monitoring locations using sound level meter (Rion NL-42). These monitoring locations are shown in Figure 6-9. Noise levels monitoring was carried out on 14 – 16 January 2019.

Noise level monitoring result are summarized in Table 6-17 and compared with limits stipulated in The Planning Guidelines for Environmental Noise Limits and Control (2007),

Annex A: Schedule 1: Maximum Permissible Sound Levels (LAeq) by Receiving Land Use for Planning and New Development. Full laboratory analysis report is attached in Appendix D.

Table 6-16 Noise Level Monitoring Program

Monitoring Compliance / No. Monitoring Location Parameter Monitored Period Standard

N1 – Open space at The Planning Project site 15 – 16 1 Guidelines for (3°33'09.1"N, January 2019 Environmental 113°19'41.5"E) Noise Limits 24 Hours Monitoring N2 – Open space at and Control (LAeq, Lmin, Lmax, L10, L90) Samalaju Lodge, 0.4 (2007), Annex 14 – 15 2 km from Project site A. Schedule 1: January 2019 (3°32'35.7"N, Maximum 113°19'33.3"E) Permissible

Page 6-39 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Monitoring Compliance / No. Monitoring Location Parameter Monitored Period Standard N3 – Open space at Sound Levels Samalaju Resort Hotel, (LAeq) by 14 – 15 3 2.5 km from Project site Receiving Land January 2019 (3°32'15.1"N, Use for 113°17'45.6"E) Planning and New N4 – Open space at Development BDA Quarters, 3.4 km 15 – 16 4 from Project site January 2019 (3°31'12.7"N, 113°19'50.4"E)

Based on noise level monitoring result, the existing noise level are measured below the stipulated limits for day time and mostly exceeding the night time limit.

During the monitoring, the main noise sources observed at N1 are existing plant operation and transportation within the plant. Night time limit exceedances are only at locations of residential settings, i.e. Samalaju Lodge, Samalaju Resort Hotel and BDA Quarters. Due to the nature of occupancy of these areas, night time exceedance can be contributed from transportation to and from the locations as well as domestic and community noise.

Page 6-40 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Table 6-17 Noise Level Monitoring Result

Monitoring Location N1 – Open space at N2 – Open space at N3 – Open space at N4 – Open space at BDA Project site Samalaju Lodge Samalaju Resort Hotel Quarters (3°33'09.1"N, (3°32'35.7"N, (3°32'15.1"N, (3°32'25.1"N, No. Parameter Unit 113°19'41.5"E) 113°19'33.3"E) 113°17'45.6"E) 113°21'29.0"E) 15 – 16 January 2019 14 – 15 January 2019 14 – 15 January 2019 15 – 16 January 2019 Day Time Night Time Day Time Night Time Day Time Night Time Day Time Night Time (7 am – 10 (10 pm – 7 (7 am – 10 (10 pm – 7 (7 am – 10 (10 pm – 7 (7 am – 10 (10 pm – 7 pm) am) pm) am) pm) am) pm) am) Average 1 dBA 53.5 50.4 53.2 47.1 47.1 47.0 48.8 46.1 LAeq Permissible 2 dBA 70 60 55 45 55 45 55 45 Noise Limit Percentage of LAeq Readings 3 % 0 0 28 67 3 86 23 67 Exceeding Noise Limit Land Use Designated Industrial Medium Density Medium Density Medium Density 4 - Category Zones Residential Areas Residential Areas Residential Areas Source: ESM, 2019

Page 6-41 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Water Quality Water quality monitoring is carried out at waterways and river system upstream and downstream of Project site, as described in Table 6-18 and Figure 6-9. Since these monitoring locations are not affected by tidal effect, the water samplings are performed for one condition only. Water quality monitoring was carried out on 15 January 2019.

Water quality monitoring result are summarized in Table 6-19 and compared with Class III limit of National Water Quality Standard (NWQS). Full laboratory analysis report is attached in Appendix D.

Table 6-18 Water Quality Monitoring Program

Monitoring Compliance / No. Monitoring Location Parameter Monitored Period Standard

W1 – Drainage system • pH of SIP, upstream of • Temperature 15 January 1 Project Site 2019 • Dissolved Oxygen (3°33'56.5"N, • Biochemical 113°19'46.6"E) Oxygen Demand W2 – Unnamed river, (BOD) downstream of Project • Chemical Oxygen 15 January 2 Site Demand (COD) 2019 (3°33'10.3"N, • Total Suspended 113°18'39.7"E) Solids (TSS) • Mercury (Hg) W3 – Drainage system • Cadmium (Cd) of SIP, downstream of 15 January • Chromium 3 Project site 2019 Hexavalent (Cr6+) (3°32'51.6"N, • Chromium Trivalent Class III limit of 113°18'58.3"E) (Cr3+) National Water Quality • Arsenic (As) Standard • Cyanide (CN) (NWQS) • Lead (Pb) • Copper (Cu) • Manganese (Mn) • Nickel (Ni) W4 – Drainage system • Tin (Sn) of SIP, downstream of 15 January • Zinc (Zn) 4 Project site 2019 • Boron (B) (3°32'29.3"N, 113°19'21.2"E) • Iron (Fe) • Silver (Ag) • Aluminium (Al) • Selenium (Se) • Barium (Ba) • Fluoride (F) • Phenol

Page 6-42 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Monitoring Compliance / No. Monitoring Location Parameter Monitored Period Standard

• Free Chlorine (Cl2) • Sulfide (S2-) • Oil and Grease (O&G) • Ammoniacal Nitrogen (AN) • Color • Formaldehyde

In general, water quality at monitored location are in found within the Class III limit of NWQS, except for COD at W1 (upstream of Project site), manganese at W1, W2 and W4, iron at W4, fluoride at W2, and ammoniacal nitrogen at W1 and W2.

In-situ pH measurement were in the range of 6.21 (W4) to 7.74 (W3), well within the Class III limit. Dissolved oxygen (DO) measured were well within the Class III limit at W2, W3 and W4 with readings ranging from 4.22 mg/l at W4 to 4.72 mg/l W3. Meanwhile at W1, DO concentration is 5.21 mg/l, which is in range of Class II limit. While BOD concentrations at all locations are detected within the Class III limit of 6 mg/l, however, COD concentrations were exceeding the 50 mg/l at W1. TSS concentrations were measured low, in the range of 2 mg/l to 4 mg/l which were well below the Class III limit of 150 mg/l.

Ammoniacal nitrogen are detected exceeding the 0.9 mg/l limit at W1 (1.7 mg/l) and W2 (6.3 mg/l). These exceedances may be contributed from surrounding industrial activities, while current Press Metal operation do not discharge any effluent at these two points.

Among heavy metals tested, manganese is detected at W1, W2 and W4, with concentration ranges from 0.106 mg/l (W1) to 0.506 mg/l (W2). Iron is detected higher than Class III limit (1 mg/l) at W4, with concentration of 1.15 mg/l. Fluoride is also detected exceeding the limit at W2, with concentration of 21 mg/l.

Page 6-43 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Table 6-19 Water Quality Monitoring Result

Monitoring Location W1 – Drainage system W2 – Unnamed river, W3 – Drainage system W4 – Drainage system of SIP, upstream of downstream of of SIP, downstream of of SIP, downstream of Class III No. Parameter Unit Project Site Project Site Project site Project site Limits (3°33'56.5"N, (3°33'10.3"N, (3°32'51.6"N, (3°32'29.3"N, 113°19'46.6"E) 113°18'39.7"E) 113°18'58.3"E) 113°19'21.2"E) 15 January 2019 15 January 2019 15 January 2019 15 January 2019 1 pH value - 6.72 6.32 7.74 6.21 5 – 9 2 Temperature °C 28.3 27.1 28.6 28.5 Nor ± 2 Biochemical Oxygen 3 Demand @ 5 days, 20 mg/l <2 3 <2 <2 6 °C Chemical Oxygen 4 mg/l 103 29 33 16 50 Demand (COD) Total Suspended 5 mg/l 3 2 2 4 150 Solids (TSS) 6 Mercury as Hg mg/l <0.001 <0.001 <0.001 <0.001 0.004 7 Cadmium as Cd mg/l <0.005 <0.005 <0.005 <0.005 0.01 Chromium Hexavalent 8 mg/l <0.01 <0.01 <0.01 <0.01 1.4 as Cr6+ Chromium Trivalent as 9 mg/l <0.01 <0.01 <0.01 <0.01 2.5 Cr3+ 10 Arsenic as As mg/l <0.005 <0.005 <0.005 <0.005 0.40

Page 6-44 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Monitoring Location W1 – Drainage system W2 – Unnamed river, W3 – Drainage system W4 – Drainage system of SIP, upstream of downstream of of SIP, downstream of of SIP, downstream of Class III No. Parameter Unit Project Site Project Site Project site Project site Limits (3°33'56.5"N, (3°33'10.3"N, (3°32'51.6"N, (3°32'29.3"N, 113°19'46.6"E) 113°18'39.7"E) 113°18'58.3"E) 113°19'21.2"E) 15 January 2019 15 January 2019 15 January 2019 15 January 2019 11 Cyanide as CN mg/l <0.02 <0.02 <0.02 <0.02 0.06 12 Lead as Pb mg/l <0.01 <0.01 <0.01 <0.01 0.02 13 Copper as Cu mg/l <0.005 <0.005 <0.005 <0.005 - 14 Manganese as Mn mg/l 0.106 0.506 0.043 0.249 0.1 15 Nickel as Ni mg/l <0.005 <0.005 <0.005 <0.005 0.9 16 Tin as Sn mg/l <0.004 <0.004 <0.004 <0.004 0.004 17 Zinc as Zn mg/l <0.005 <0.005 <0.005 <0.005 0.4 18 Boron as B mg/l 0.043 0.042 0.024 0.018 - 19 Iron as Fe mg/l 0.663 2.39 0.116 1.15 1 20 Silver as Ag mg/l <0.005 <0.005 <0.005 <0.005 0.0002 21 Aluminium as Al mg/l 0.38 1.77 0.51 0.32 - 22 Selenium as Se mg/l <0.01 <0.01 <0.01 <0.01 0.25 23 Barium as Ba mg/l <0.01 <0.01 <0.01 <0.01 - 24 Fluoride as F mg/l 0.8 21.0 2.6 0.7 10 25 Phenol mg/l <0.001 <0.001 <0.001 <0.001 -

Page 6-45 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Monitoring Location W1 – Drainage system W2 – Unnamed river, W3 – Drainage system W4 – Drainage system of SIP, upstream of downstream of of SIP, downstream of of SIP, downstream of Class III No. Parameter Unit Project Site Project Site Project site Project site Limits (3°33'56.5"N, (3°33'10.3"N, (3°32'51.6"N, (3°32'29.3"N, 113°19'46.6"E) 113°18'39.7"E) 113°18'58.3"E) 113°19'21.2"E) 15 January 2019 15 January 2019 15 January 2019 15 January 2019

26 Free Chlorine as Cl2 mg/l <0.01 <0.01 <0.01 <0.01 - 27 Sulfide as S2- mg/l <0.05 <0.05 <0.05 <0.05 - 28 Oil & Grease mg/l <1 <1 <1 <1 N Ammoniacal Nitrogen 29 mg/l 1.7 6.3 0.9 0.6 0.9 as N 144 26 42 <5 30 Color (ADMI) ADMI - (pH 7.0) (pH 6.4) (pH 9.0) (pH 5.5) 31 Formaldehyde mg/l 0.1 <0.1 0.1 <0.1 - 32 Dissolved Oxygen mg/l 5.21 4.28 4.72 4.22 3 – 5 Source: ESM, 2019

Page 6-46 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Soil Quality One soil sample was taken at Project site on 15 January 2019 to record the existing soil quality. The soil sample was collected at depth of 1.5 meters using hand auger sampling technique according to procedures specified in ASTM D 1452-80, 2000. The soil sampling location is described in Table 6-20 and Figure 6-9.

Soil quality monitoring result are summarized in Table 6-21 and compared with limit in Contaminated Land Management and Control Guidelines No. 1: Malaysian Recommended Site Screening Levels for Contaminated Land. Full laboratory analysis report is attached in Appendix D.

Table 6-20 Soil Quality Monitoring Program

Monitoring Compliance / No. Monitoring Location Parameter Monitored Period Standard

• Heavy metals comprising of minimum 13 parameters (Sb, As, Be, Cd, Cr, Cu, Contaminated Pb, Hg, Ni, Se, Ag, Land Sn and Zn), Al Management • Total Petroleum and Control S1 – Soil sample at Hydrocarbons Guidelines No. Project site 15 January 1 (TPHs) 1: Malaysian (3°33'09.1"N, 2019 • Polychlorinated Recommended 113°19'41.5"E) Biphenyls (PCBs) Site Screening • Volatile Organic Levels for Compounds Contaminated (VOCs) include Land BTEX • Polycyclic Aromatic Hydrocarbons (PAHs)

Table 6-21 Soil Quality Monitoring Result

Monitoring Location S1 – Soil sample at Project site DOE - No. Parameter Unit (3°33'09.1"N, 113°19'41.5"E) CLM 15 January 2019 A Heavy Metals 1 Arsenic as As mg/kg <0.1 16 2 Cadmium as Cd mg/kg <0.5 810

Page 6-47 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Monitoring Location S1 – Soil sample at Project site DOE - No. Parameter Unit (3°33'09.1"N, 113°19'41.5"E) CLM 15 January 2019 3 Chromium as Cr mg/kg 17 14,000 4 Copper as Cu mg/kg 4.6 41,000 5 Mercury as Hg mg/kg <0.02 28 6 Nickel as Ni mg/kg <0.5 - 7 Lead as Pb mg/kg <1 800 8 Antimony as Sb mg/kg <1 410 9 Selenium as Se mg/kg <1 5100 10 Zinc as Zn mg/kg 17 310,000 11 Tin as Sn mg/kg 2 610,000 12 Aluminium as Al mg/kg 39,970 990,000 13 Beryllium as Be mg/kg <1 2,000 14 Silver as Ag mg/kg <0.5 5,100 B Total Petroleum Hydrocarbons 15 C8-C9 mg/kg <0.1 - 16 C10-C14 mg/kg <0.1 - 17 C15-C28 mg/kg <0.1 - 18 C29-C36 mg/kg <0.1 - C Volatile Organic Compounds 19 Benzene mg/kg <0.01 56 20 Toluene mg/kg <0.01 46,000 21 Chlorobenzene mg/kg <0.01 1500 22 Ethylbenzene mg/kg <0.01 290 23 meta- & para-Xylene mg/kg <0.01 2,600 24 Styrene mg/kg <0.01 38,000 25 ortho-Xylene mg/kg <0.01 23,000 26 Isoprophylbenzene mg/kg <0.01 - 27 n-Prophylbenzene mg/kg <0.01 - 28 Bromobenzene mg/kg <0.01 410 29 1.3.5-Trimethylbenzene mg/kg <0.01 200 30 2-Chlorotoluene mg/kg <0.01 -

Page 6-48 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Monitoring Location S1 – Soil sample at Project site DOE - No. Parameter Unit (3°33'09.1"N, 113°19'41.5"E) CLM 15 January 2019 31 4-Chlorotoluene mg/kg <0.01 - 32 Tert-Butylbenzene mg/kg <0.01 - 33 1.2.4-trimethylbenzene mg/kg <0.01 280 34 Sec-Butylbenzene mg/kg <0.01 - 35 Isoprophyltoluene mg/kg <0.01 - 36 1.3-Dichlorobenzene mg/kg <0.01 - 37 1.4-Dichlorobenzene mg/kg <0.01 130 38 n-Butylbenzene mg/kg <0.01 - 39 1.2-Dichlorobenzene mg/kg <0.01 10,000 40 1.2.4-Trichlorobenzene mg/kg <0.01 - 41 Naphthalene mg/kg <0.01 - 42 1.2.3-Trichlorobenzene mg/kg <0.01 - D Polynuclear Aromatics Hydrocarbons (PAHs) 43 Naphthalene mg/kg <0.1 200 44 Acenaphthylene mg/kg <0.1 - 45 Acenaphthene mg/kg <0.1 33,000 46 Fluorene mg/kg <0.1 22,000 47 Phenanthrene mg/kg <0.1 - 48 Anthracene mg/kg <0.1 170,000 49 Fluoranthene mg/kg <0.1 22,000 50 Pyrene mg/kg <0.1 17,000 51 Benz(a)anthracene mg/kg <0.1 21 52 Chrysene mg/kg <0.1 2,100 53 Benzo (b) fluoranthene mg/kg <0.1 21 54 Benzo (k) fluoranthene mg/kg <0.1 210 55 Benzo(a)pyrene mg/kg <0.1 2.1 56 Indeno (1,2,3-cd)pyrene mg/kg <0.1 21 57 Dibenz(a,h)antharacena mg/kg <0.1 2.1 58 Benzo(g,h,i)perylene mg/kg <0.1 - E Polychlorinated Biphenyls (PCBs)

Page 6-49 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Monitoring Location S1 – Soil sample at Project site DOE - No. Parameter Unit (3°33'09.1"N, 113°19'41.5"E) CLM 15 January 2019 59 Arochlor 1016 mg/kg 0.01 210 60 Arochlor 1221 mg/kg 0.01 6.2 61 Arochlor 1232 mg/kg 0.01 6.2 62 Arochlor 1242 mg/kg 0.01 7.4 63 Arochlor 1248 mg/kg 0.01 7.4 64 Arochlor 1254 mg/kg 0.01 7.4 65 Arochlor 1260 mg/kg 0.01 7.4 66 Arochlor 1016 mg/kg 0.01 210 Source: ESM, 2019

Soil quality are assessed in accordance to DOE’s Contaminated Land Management and Control Guidelines No. 1: Malaysian Recommended Site Screening Levels for Contaminated Land. Per Appendix A of the guideline, Project activities are considered as potentially polluting activities, i.e. under item 40. “Smelting or refining”.

Heavy metals detected in soil sample are chromium, copper, zinc and tin. However, their concentrations are measured under the DOE-CLM values. Aluminium was detected at 39970 mg/kg. Total petroleum hydrocarbons (TPHs), Volatile Organic Compounds (VOCs), Polynuclear Aromatics Hydrocarbons (PAHs) are not detected. Polychlorinated Biphenyls (PCBs) are detected at values of 0.01 mg/kg for all parameters, which are below the levels stipulated in the Guidelines.

Acid Rain Monitoring Acid rain monitoring are conducted on-site over a period of two month, as described in Table 6-22 and monitoring results are shown in Table 6-23.

Table 6-22 Acid Rain Monitoring Program

Monitoring Compliance / No. Monitoring Location Parameter Monitored Period Standard R1 – Rainwater sample at Project site February – 1 • pH - (3°32'46,1”N, March 2019 113°19’15.7”E)

Page 6-50 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Table 6-23 Acid Rain Monitoring Result

No. Date Rainfall (mm) pH 1 7 February 2019 12.2 4.28 2 8 February 2019 0.8 - 3 11 February 2019 72.0 5.10 4 13 February 2019 3.5 5.85 5 17 February 2019 36.8 5.49 6 18 February 2019 13.6 5.75 7 21 February 2019 0.6 - 8 23 February 2019 19.8 4.88 9 7 March 2019 3.8 5.62 10 24 March 2019 8.2 6.44 Source: Press Metal, 2019

Based on the pH value of rainfall samples throughout February to April 2019, most rainfall event at Project site is considered as acidic, which is characteristic of normal rain (pH value between 5.0 – 5.5). On one occasion, i.e. 7 February 2019, pH value is measured at 4.28, which can be categorised as “acid rain” (typical acid rain pH value 4.2 – 4.4).

6.7 PROJECT’S ENVIRONMENTAL PERFORMANCE COMPLIANCE STATUS Press Metal’s environmental performance are obtained by making reference to past environmental records and reports, which include environmental monitoring program carried out throughout existing plant operation and findings of environmental compliance audit performed on yearly basis.

For this purpose, environmental records and reports for the past three (3) years are reviewed and presented in the following subsection.

Past Monitoring Records Throughout existing plant’s operation, periodic environmental monitoring program has been performed, which encompasses monitoring of stack emission quality, water discharge quality, river water quality, sewage quality, ambient air quality and noise level for parameters and at locations as described in Table 6-24 and Figure 6-10. Monitoring records from January 2016 to December 2018 as well as baseline data recorded during previous EIAs are compiled and appended in Appendix E.

Based on the records, the existing plant’s environmental performance is satisfactory and is in compliance with the relevant regulatory limits. The summary of environmental performance is described in Table 6-25.

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Table 6-24 Environmental Monitoring Program for Existing Plant

Parameter Monitoring Target Compliance Frequency Plant 1 Plant 2 Stack Emission Monitoring (Plant 2 EIA Approval Conditions No. 30, 32 & 53) FTS’s Stacks a. Hydrogen Fluoride (HF)(2) a. Hydrogen Fluoride Environmental a. Continuous(2)& (2) (2) Plant 1 b. Sulphur Dioxide (SO2) (HF) Quality (Clean Air) Quarterly (2) (2) F1 c. Total Fluoride (TF) b. Sulphur Dioxide (SO2) Regulations 2014: b. Continuous (N 3°33'11.52"; E113°19'8.88") d. Total Particulate Matter c. Total Fluoride (TF) a. 1 mg/Nm3 & Quarterly F2 (TPM)(2) d. Total Particulate Matter b. 100 mg/Nm3 c. Quarterly (N 3°33'19.24"; E 113°19'16.29") (TPM)(2) c. 1.5 mg/Nm3 d. Continuous(2) (2) 3 F3 e. Nitrogen dioxide (NO2) d. 10 mg/Nm & Quarterly (N 3°33'26.21"; E 113°19'23.27") e. 100-300 e. Continuous(2) mg/Nm3(1) Plant 2 a. Carbon dioxide (CO2) a. Carbon dioxide (CO2) a. - a. Yearly F4 b. Perfluorocarbon (PFC) b. Perfluorocarbon (PFC) b. 0.1 (anode b. Yearly (N 3°33'3.76"; E 113°19'16.93") effects/cell/day) F5 (3) (N 3°33'11.41"; E 113°19'24.26") F6 (N 3°33'19.06"; E 113°19'31.90") Bag Filter’s Stacks a. Total Particulate Matter a. Total Particulate Matter a. 50 mg/Nm3 Quarterly Plant 1 (Anode Rodding Plant) (Total PM) (Total PM) P1 (N 3°33'12.05"; E 113°19'14.53" ) P2 (N 3°33'13.27"; E 113°19'15.56") P3 (N 3°33'14.28"; E 113°19'16.82")

Page 6-52 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Parameter Monitoring Target Compliance Frequency Plant 1 Plant 2 P4 (N 3°33'15.37"; E 113°19'17.73") P5 (N 3°33'14.74"; E 113°19'18.83")

Plant 2 (Anode Rodding Plant) P6 (N 3°33'4.43"; E 113°19'22.50") P7 (N 3°33'5.42"; E 113°19'23.48") P8 (N 3°33'6.60"; E 113°19'24.63") P9 (N 3°33'7.60"; E 113°19'25.72") P10 (N 3°33'7.05"; E 113°19'26.67") P11 (N 3°33'6.60"; E 113°19'24.63") Bag Filter’s Stack a. Total PM - a. 50 mg/Nm3 Quarterly

Plant 1 (Casthouse) C1 (N 3°33'32.44"; E 113°19'33.73") C2 (N 3°33'33.00"; E 113°19'34.32") C3 (N 3°33'33.12"; E 113°19'34.14")

Page 6-53 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Parameter Monitoring Target Compliance Frequency Plant 1 Plant 2 Plant 2 (Casthouse) C5 (N 3°33'22.7”; E 113°19'37.3")

Plant 2 (Crucible Cleaning 2) E1 (N 3°33’25”; E 113° 19’ 45”) Ambient Air Monitoring (Plant 2 EIA Approval Conditions No. 33 & 53)

A1 – At Kg. Nyalau Tengah a. Particulate Matter less than 10 micron (PM10) Malaysia Ambient Quarterly (N 3°37'16.42 "; E 113°24'40.05") b. Particulate matter less than 2.5 micron (PM2.5) Air Quality Standard c. Sulphur Dioxide (SO2) 2013 (2020 A2 – Suburmas Oil Palm Estate d. Nitrogen Dioxide (NO2) Standard): Southeast Of Plant e. HF(4) a. 100 µg/m3 (N 3°32'45.78"; E 113°21'33.89") (24 hour) b. 35 µg/m3 A3 – Laku Centralised Water (24 hour) Treatment Plant c. 80 µg/m3 (N 3°31'16.65"; E 113°20'18.74") (24 hour) d. 280 µg/m3 (1 hour) e. 20 µg/m3 (24 hour)

Page 6-54 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Parameter Monitoring Target Compliance Frequency Plant 1 Plant 2 Noise Monitoring (Plant 2 EIA Approval Conditions No. 41 & 53)

N1 – Plant Boundary a. A-weighted Equivalent Sound Level (LAeq) (24 Hours) The Planning Quarterly (N 3°33'27.39"; E 113°19'19.70") b. Maximum Sound Level (Lmax) (24 Hours) Guidelines for c. Minimum Sound Level (Lmin) (24 Hours) Environmental N2 – Plant Boundary d. Noise Level Exceeded for 10% of Measurement Period Noise Limits and (N 3°32'55.35"; E 113°19'17.02") (L10) (24 Hours) Control: e. Noise Level Exceeded for 90% of Measurement Period a. 70 dBA N3 – Land Property Plant Boundary (L90) (24 Hours) (Daytime) & (N 3°33'10.71"; E 113°19'59.69") 60 dBA (Night Time)

Water Discharge Quality (Plant 2 EIA Approval Conditions No. 27 & 53) FD1 – Final Discharge Point from a. pH Standard B limit of Monthly Aluminium Plant b. Temperature Environmental (N 3°33'2.54"; E 113°18'55.82") c. BOD5 Quality (Industrial d. COD Effluent) FD2 – Final Discharge Point from e. Suspended Solids Regulations, 2009: Aluminium Plant f. Oil & grease a. 5.5 – 9 (N 3°33'17.51” ; E 113°19'10.01") g. Ammoniacal nitrogen b. 40 °C c. 50 mg/L d. 200 mg/L e. 100 mg/L f. 10 mg/L g. 20 mg/L

Page 6-55 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Parameter Monitoring Target Compliance Frequency Plant 1 Plant 2 River Water Quality (Plant 2 EIA Approval Condition No. 26) RW1 – River water at Sg. Semba a. pH Class III limit of Quarterly (N 3°31'40.60"″ ; E 113°19'22.70") b. Temperature National Water c. BOD5 Quality Standard RW2 – River water at Sg. Similajau d. COD (NWQS): (N 3°30'38.98"; E 113°19'2.03") e. TSS a. 9 f. Mercury b. Normal±2 RW3 – River water at FD1 g. Cadmium c. 6 (N 3°33'2.54"; E 113°18'55.82") h. Chromium6+ d. 50 i. Chromium3+ e. 150 j. Arsenic f. 0.004 k. Lead g. 0.01 l. Copper h. 1.4 m. Manganese i. 2.5 n. Nickel j. 0.4 o. Tin k. 0.02 p. Zinc l. - q. Iron m. 0.1 r. Silver n. 0.9 s. Aluminium o. 0.004 t. Selenium p. 0.4 u. Fluoride q. 1.0 v. S2- r. - w. Oil & grease s. - x. Ammoniacal nitrogen t. - y. Dissolved oxygen u. - v. -

Page 6-56 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Parameter Monitoring Target Compliance Frequency Plant 1 Plant 2 w. - x. 0.9 y. 3 – 5 Sewage Discharge Quality (Plant 2 EIA Approval Conditions No. 23 & 53) SW1 – Sewage discharge point from a. pH - Standard B limit of Monthly the Aluminium Plant b. BOD - Environmental (N 3°33'32.24″; E 113°19'28.01") c. COD - Quality (Sewage) d. Oil & Grease - Regulations, 2009: e. Ammoniacal Nitrogen - a. 5.5-9.0 (river) - b. 50 mg/L f. Nitrate (river) - c. 200 mg/L g. Total coliform count d. 10 mg/L e. 20 mg/L f. 50 mg/L g. - Ecology Monitoring (Plant 2 EIA Approval Conditions No. 42 & 53) Areas Surrounding Press Metal a. Fluoride (in bioindicators) - Triannual Sampling - Monsoon (wet) - Transition - Post monsoon (dry) Note: (1) & (3) Compliance limit for NO2 and PFC is based on IFC EHS Guidelines for Base Metal Smelting and Refining, IFC 2007 (2) Continuous monitoring for the stacks is by CEMS, which linked directly to DOE Sarawak. (4) Permissible ambient level for HF is referred to Arizona Ambient Air Quality Guidelines, 1999 as per Condition No.33 of Existing Plant DEIA Approval (ref no: AS (PN) 37/209/101/084 Jld 3 (20)), due to absence of ambient limits in Malaysia.

Page 6-57 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

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FD1 RW3 FD2 N1 North

SW1 F1 F2 F3

A1 C3 P1 P2 P3 P4 C1 C2 P5

N3 A2

RW1 C5 F4 F5 F6 A3 RW2

P11 P6 P7 P8 P9 E1 P10

N2

Stack Emission Quality Stack Emission Quality Noise F1 C1 N1 Press Metal Boundary F2 C2 N2 Press Metal Boundary F3 C3 Bagfilter Stack N3 Land Property Boundary FTS Stack F4 C5 F5 E1 F6 Ambient Air Quality P1 A1 Kg. Nyalau Tengah P2 A2 Suburmas Estate P3 A3 Laku WTP P4 Water Quality P5 RW1 Sg. Semba P6 Bagfilter Stack RW2 Sg. Similajau P7 RW3 At FD2 P8 FD1 At Potline Factory P9 FD2 At Power Station P10 Sewage Discharge Quality P11 Sewage Discharge SW1 Point

Source: Press Metal EMP 2019

Figure 6-10 Environmental Monitoring Location (Existing Plant)

Page 6-59 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Table 6-25 Environmental Performance for Existing Plant (2016 – 2018)

No. Monitoring Monitoring Location Parameter Frequency Environmental Compliance Status Target 1. Stack Plant 1 FTS’s Stacks Hydrogen Fluoride (HF) Quarterly & HF concentration monitored on quarterly basis are within Clean Emission Continuously Air Regulations 2014 limit (1 mg/Nm3). Quality • F1 • F2 Based on CEMS record for year 2018, compliance to 1 mg/m3 • F3 limit is achieved 96.18% of the time at F1, 95.66% of the time at F2, and 97.74% of the time at F3 (Refer Chapter 6.7.2).

Sulphur Dioxide (SO2) Quarterly & SO2 concentration monitored on quarterly basis are within Continuously Clean Air Regulations 2014 limit (200 mg/Nm3).

Based on CEMS record for year 2018, compliance to 100 mg/m3 limit is achieved 98.09% of the time at F1, 98.79% of the time at F2, and 99.13% of the time at F3 (Refer Chapter 6.7.2). Total Fluoride (TF) Quarterly Total fluoride monitored on quarterly basis are within Clean Air Regulations 2014 limit (1.5 mg/m3). Total Particulate Matter Quarterly & TPM concentration monitored on quarterly basis are within (TPM) Continuously Clean Air Regulations 2014 limit (10 mg/Nm3).

Based on CEMS record for year 2018, compliance to 10 mg/m3 limit is achieved 99.30% of the time at F1, 99.48% of the time at F2, and 99.79% of the time at F3 (Refer Chapter 6.7.2).

Carbon dioxide (CO2) Yearly CO2 monitoring was carried out in 2017 and 2018. No limit is imposed on CO2 concentration under Clean Air Regulations 2014.

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No. Monitoring Monitoring Location Parameter Frequency Environmental Compliance Status Target Perfluorocarbon (PFC) Yearly PFC monitoring was carried out in 2017 and 2018. PFC are measured within limit stipulated by IFC EHS Guidelines for Base Metal Smelting and Refining (0.1 anode effects/cell/day). Plant 2 FTS’s Stacks Hydrogen Fluoride (HF) Quarterly & HF monitored on quarterly basis are within Clean Air Continuously Regulations 2014 limit (1 mg/m3). • F4 • F5 The CEMS record for year 2018 shows compliance to 1 mg/m3 • F6 limit is achieved at 98.10% of the time at F4, 99.48% of the time at F5, and 99.80% of the time at F6 (Refer Chapter 6.7.2).

Sulphur Dioxide (SO2) Quarterly & SO2 concentration monitored on quarterly basis are within Continuously Clean Air Regulations 2014 limit (200 mg/Nm3).

The CEMS record for year 2018 shows compliance to 100 mg/m3 limit is achieved at 97.72% of the time at F4, 96.53% of the time at F5, and 95.31% of the time at F6 (Refer Chapter 6.7.2). Total Fluoride (TF) Quarterly Total fluoride monitored are within Clean Air Regulations 2014 limit of 1.5 mg/m3. Total Particulate Matter Quarterly & TPM concentration monitored on quarterly basis are within (TPM) Continuously Clean Air Regulations 2014 limit (10 mg/Nm3).

The CEMS record for year 2018 shows compliance to 10 mg/m3 limit is achieved at 99.48% of the time at F4, 99.83% of the time at F5, and 100% of the time at F6 (Refer Chapter 6.7.2).

Page 6-61 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

No. Monitoring Monitoring Location Parameter Frequency Environmental Compliance Status Target

Nitrogen dioxide (NO2) Continuously The CEMS record for year 2018 shows compliance to 200 mg/m3 limit is achieved 100% of the time at F4, F5 and F6 (Refer Chapter 6.7.2).

Carbon dioxide (CO2) Yearly CO2 monitoring was carried out in 2017 and 2018. No limit is imposed on CO2 concentration under Clean Air Regulations 2014. Perfluorocarbon (PFC) Yearly PFC monitoring was carried out in 2018. PFC are measured within limit stipulated by IFC EHS Guidelines for Base Metal Smelting and Refining (0.1 anode effects/cell/day). Plant 1 Bag Filter’s Total Particulate Matter Quarterly TPM concentration monitored on quarterly basis are within Stack (Anode Rodding (Total PM) Clean Air Regulations 2014 limit (50 mg/Nm3). Plant) • P1 • P2 • P3 • P4 • P5 Plant 2 Bag Filter’s Total Particulate Matter Quarterly TPM concentration monitored on quarterly basis are within Stack (Total PM) Clean Air Regulations 2014 limit (50 mg/Nm3). (Anode Rodding Plant) • P6 • P7 • P8 • P9 • P10

Page 6-62 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

No. Monitoring Monitoring Location Parameter Frequency Environmental Compliance Status Target Plant 1 Bag Filter’s Total Particulate Matter Quarterly TPM concentration monitored on quarterly basis are within Stack (Casthouse) (Total PM) Clean Air Regulations 2014 limit (50 mg/Nm3). • C1 • C2 • C3

2. Ambient Air • A1 – At Kg. Nyalau Particulate Matter less Quarterly PM10 concentrations throughout the monitoring program are 3 Quality Tengah than 10 micron (PM10) measured within MAAQS 2020 limit (100 µg/m ). Notable • A2 – Suburmas Oil exception is in June 2016 at A1, in which PM10 was measured Palm Estate at 116.74 µg/m3. However, in June 2016, applicable MAAQS Southeast of Plant limit is 120 µg/m3 (Interim Target 2). • A3 – Laku Particulate matter less Quarterly PM2.5 concentrations throughout the monitoring program are Centralised Water 3 than 2.5 micron (PM2.5) measured within MAAQS 2020 limit (35 µg/m ). Treatment Plant Sulphur Dioxide (SO2) Quarterly SO2 was not detected throughout the monitoring program (2016 – 2018).

Nitrogen Dioxide (NO2) Quarterly NO2 was not detected throughout the monitoring program (2016 – 2018). Hydrogen Fluoride (HF) Quarterly HF was not detected throughout the monitoring program (2016 – 2018).

3. Noise Level • N1 – Plant LAeq, Lmin, Lmax, L10, L90 Quarterly Noise levels recorded are within the DOE day time limit (70 Boundary dBA) and night time limit (60 dBA) during all monitoring • N2 – Plant program. Boundary • N3 – Land Property Plant Boundary

Page 6-63 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

No. Monitoring Monitoring Location Parameter Frequency Environmental Compliance Status Target

4. Water • FD1 – Final pH Monthly The final discharge quality from the existing plant was fully Discharge Discharge Point complied with the Standard B limits under the Environmental Temperature Monthly Quality from Aluminium Quality (Industrial Effluent) Regulations 2009. Plant BOD5 Monthly • FD2 – Final COD Monthly Discharge Point from Aluminium Suspended Solids Monthly Plant Oil & grease Monthly Ammoniacal nitrogen Monthly

5. River Water • RW1 – River water Standard B Parameters Quarterly River water quality was within Class III limits of National Water Quality at Sg. Semba Quality Standards. • RW2 – River water at Sg. Similajau • RW3 – River water at FD1

6. Sewage • SW1 – Sewage pH Monthly The final discharge quality from the existing plant was fully Discharge discharge point complied with the Standard B limits under the Environmental BOD Monthly Quality from the Quality (Industrial Effluent) Regulations 2009 except for BOD Aluminium Plant COD Monthly during October 2018 monitoring period. Oil & Grease Monthly Ammoniacal Nitrogen Monthly (river) Nitrate (river) Monthly Total coliform count Monthly

Page 6-64 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Continuous Emission Monitoring System (CEMS) Record Review of the Continuous Emission Monitoring System (CEMS) data from the existing operation was undertaken and compared with the following environmental requirements and compliances.

Within this section, the review of the existing CEMS performance for Y2018 are presented in Table 6-26. The emission concentration monitored presently for SO2, HF, Total PM and NO2 (only required for Plant 2 Operation), of which are compared with the limits for compliance described below.

CEMS Approval Compliance for Plant 1

Plant 1 is presently subject to compliance with the EIA Approval Conditions that was granted for the EIA study entitled “Detailed Environmental Impact Assessment: Proposed Aluminium Smelting Plant at Samalaju Industrial Park, Similajau, Bintulu, Sarawak”. The EIA Approval granted is referred to DOE’s letter dated 9 February 2011 with reference: AS(PN)37/209/101/084 Jld 3 (20); (Appendix A).

Following the EIA Approval, an appeal for the stack emission limits were made to the EIA Approval Conditions and the appeal for revision of the stack emission was granted via DOE’s letter dated 21 December 2012 (Appendix F).

Summary of salient approval compliance is as follows: a) Emission limit for the stack shall comply with the stipulated limit as per EIA Approval Condition No: 33 b) Installation of Continuous Emission Monitoring System (CEMS) for parameters

namely Sulphur Dioxide (SO2), Hydrogen Fluoride (HF), Total Fluoride (TF) and Total Particulate Matter (Total PM) for the main stack as per EIA Approval Condition No: 35 c) Appeal on the EIA Approval Condition No: 33 for SOx Emission Limit. The revised SOx Emission Limit allowed by DOE is not more than 200 mg/Nm3. DOE reference: AS(PN)37/209/101/084 Jld 3 (29); dated 21 December 2012.

CEMS Approval Compliance for Plant 2

For the Plant 2 development, the compliance for the CEM is referred to the EIA Approval granted for the EIA study entitled “Detailed Environmental Impact Assessment: Proposed Expansion of Aluminium Smelting Plant on Lot 36, Block 1, Samalaju Industrial Park, Similajau, Kemena Land District, Bintulu, Sarawak”. The EIA Approval granted is referred to DOE’s letter dated 16 October 2015, reference: AS(PN)37/209/101/084 Jld 4 (72); (Appendix A).

Page 6-65 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

a) The maximum sulfur content for the pre-baked anodes is set at not more than 2.0% as per EIA Approval Condition No: 29.

b) Emission limit for the stack for Hydrogen Fluoride (HF), Sulphur Dioxide (SO2), Total Fluoride (TF) and Total Particulate Matter (Total PM) shall comply with the stipulated limit as per EIA Approval Condition No: 30.

Pollutant Emission Limit Monitoring Frequency HF 1 mg/m3 Periodic Total PM 10 mg/m3 Continuous SOx 100 mg/m3 Continuous Total Fluoride (TF) 1.5 mg/m3 Periodic

c) Monitoring of Carbon Dioxide (CO2) and Perfluorocarbon (PFC) emission from the Fume Treatment System (FTS) shall be conducted once a year as per as per EIA Approval Condition No: 31. d) Installation of Continuous Emission Monitoring System (CEMS) for parameters

namely Sulphur Dioxide (SO2), Hydrogen Fluoride (HF), Total Fluoride (TF), Nitrogen

Dioxide (NO2) and Total Particulate Matter (Total PM) for the main stack as per EIA Approval Condition No: 35.

Page 6-66 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

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Page 6-67 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Table 6-26 CEMS Record for Y2018

No. CEMS CEMS Record Analysis Findings Location Parameters Remarks Month-Y2018 J F M A M J J A S O N D Average Plant 1 Operation

1. F1 SO2 Minimum: 0.36 0 13.82 0 0.01 0.23 0 0 0.13 0 0 0 1.21 Annual averaging results showed (30 min Average) that >99% complied with the Limit Maximum: 199.7 143.17 165.09 147.92 183.3 1116.43 387.71 3230.63 3622.19 498.97 251.97 1429.07 948.01 of 200 mg/m3. With an averaging Average 65.58 65.46 77.81 75.79 56.42 65.20 75.17 119.71 13.80 32.21 69.37 41.34 63.15 value of 63.15 mg/m3. % of 100 100 100 100 100 98.96 99.73 100 99.65 99.40 99.72 100 99.79 Compliance:

SO2 Minimum: 7.37 38.76 40.97 20.85 30.4 20.25 36.52 29.41 0 0 17.2 2.08 20.32 Annual averaging results showed (Daily Average) that >98% complied with the Limit Maximum: 114.03 96.44 108.1 103.13 74.75 99.2 109.54 797.2 246.62 126.18 116.9 96.82 174.08 of 100 mg/m3. With an averaging Average 65.58 65.46 77.81 75.79 56.42 65.20 75.17 119.71 13.80 32.21 69.37 41.34 63.16 value of 63.16 mg/m3. % of 100 100 100 100 100 100 95.83 100 97.92 89.58 93.75 100 98.09 Compliance: HF Minimum: 0 0.03 0.03 0 0.03 0.04 0.03 0.03 0 0.03 0 0 0.018 Annual averaging results showed (30 min Average) that >97% complied with the Limit Maximum: 4.07 2.68 2.28 4.19 7.94 4.94 4.67 24.96 3.21 6.05 24.96 24.96 9.58 of 2 mg/m3. With an averaging value Average 0.59 0.75 0.70 0.71 0.69 0.83 0.96 0.88 0.75 0.71 1.67 6.14 1.28 of 1.28 mg/m3. % of 100 99.5 100 100 99.46 99.38 98.92 100 99.03 97.04 78.75 100 97.67 Compliance: HF Minimum: 0.22 0.24 0.27 0.14 0.48 0.19 0.92 0.55 0 0.27 0.01 0.87 0.35 Annual averaging results showed that >96% complied with the Limit (Daily Average) Maximum: 1.05 0.96 0.89 0.9 0.86 1.1 1.4 2.26 1.07 1.25 11.91 19.89 3.63 of 1 mg/m3. With an averaging value Average 0.59 0.75 0.70 0.71 0.69 0.83 0.96 0.88 0.75 0.71 1.67 6.14 1.28 of 1.28 mg/m3. % of 100 100 100 100 100 97.92 97.92 100 95.83 91.67 70.83 100 96.18 Compliance: Total PM Minimum: 0 0.15 0 0 0.07 0.73 0.01 0.56 0 0.3 0 0 0.15 Annual averaging results showed that >99.9% complied with the Limit (30 min Average) Maximum: 9.03 4.13 13.26 2.62 20.87 25.75 23.49 27.47 10.93 18.94 4.16 4.68 13.78 of 20 mg/m3. With an averaging Average 2.75 2.00 2.13 19.96 2.76 2.94 2.49 2.80 2.13 4.40 1.33 0.40 3.84 value of 3.84 mg/m3. % of 100 100 100 100 99.93 99.93 99.93 100 100 100 100 100 99.98 Compliance: Total PM Minimum: 1.15 0.97 1.16 1.15 1.41 1.59 1.37 1.23 0 0.66 0.16 0.11 0.91 Annual averaging results showed (Daily Average) that >99% complied with the Limit Maximum: 3.73 3.34 3.71 4.44 4.03 4.85 4.69 4.43 3.65 12.93 2.76 0.92 4.46 of 10 mg/m3. With an averaging Average 2.75 2.00 2.13 2.62 2.76 2.94 2.49 2.80 2.13 4.40 1.33 0.40 2.40 value of 2.4 mg/m3. % of 100 100 100 100 100 100 100 100 100 91.67 100 100 99.30 Compliance:

2. F2 SO2 Minimum: 0.29 0.17 0 0 0.02 0.01 0.43 0 0 0 0.03 0 0.08 Annual averaging results showed (30 min Average) that >99% complied with the Limit Maximum: 518.71 214.56 159.69 148.85 214.19 1110.69 950.81 3202.28 3618.98 895.23 163.61 2817.2 1167.9 of 200 mg/m3. With an averaging Average 57.79 63.21 83.12 65.03 54.54 67.92 78.02 113.21 13.55 9.47 55.66 51.91 59.45 value of 59.45 mg/m3. % of 99.93 99.85 99.93 99.93 99.93 98.89 99.93 99.93 99.65 99.46 100 99.93 99.78 Compliance:

Page 6-68 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

No. CEMS CEMS Record Analysis Findings Location Parameters Remarks Month-Y2018 J F M A M J J A S O N D Average

SO2 Minimum: 9.52 16.44 58.11 15.98 24.13 22.55 52.01 23.65 0 0 16.82 0.14 19.95 Annual averaging results showed (Daily Average) that >98.7% complied with the Limit Maximum: 95.48 101.23 111.06 99 77.41 107.05 114.75 832.86 233.37 84.07 90.36 104.04 170.89 of 100 mg/m3. With an averaging Average 57.79 63.21 83.12 65.03 54.54 67.92 78.02 113.21 13.55 9.47 55.65 51.91 59.45 value of 59.45 mg/m3. % of 100 97.92 100 100 100 95.83 93.75 100 97.92 100 100 100 98.79 Compliance: HF Minimum: 0 0.01 0.1 0 0.01 0.84 0.45 0.16 0 0.01 0 0 0.13 Annual averaging results showed (30 min Average) that >98% complied with the Limit Maximum: 2.65 2.48 4.02 2.33 3.2 1.52 2.29 1.74 3.88 9.4 6.87 24.97 5.45 of 2 mg/m3. With an averaging value Average 0.76 0.68 0.84 0.83 0.75 0.87 0.83 0.74 0.76 0.86 0.74 1.63 0.86 of 0.86 mg/m3. % of 99.66 99.70 99.66 99.66 98.92 100 99.73 99.66 99.72 94.29 94.72 99.66 98.78 Compliance: HF Minimum: 0.29 0.46 0.57 0.23 0.03 0.85 0.77 0.44 0 0.36 0.03 0.48 0.38 Annual averaging results showed that >95% complied with the Limit (Daily Average) Maximum: 1.09 0.98 0.98 1.05 1.09 0.93 1.1 0.91 1.06 1.88 1.93 11.38 2.03 of 1 mg/m3. With an averaging value Average 0.76 0.68 0.84 0.83 0.75 0.87 0.83 0.74 0.76 0.86 0.74 1.63 0.86 of 0.86 mg/m3. % of 95.83 100 95.83 95.83 97.92 100 97.92 95.83 97.92 85.42 89.58 95.83 95.66 Compliance: Total PM Minimum: 0 0.04 0 0 0.23 0.23 1.93 1.23 0 0.32 0 0 0.33 Annual averaging results showed that >99% complied with the Limit (30 min Average) Maximum: 8.84 53.41 52.97 59.81 25.4 31.02 28.32 29.54 14.91 36.8 20.43 42.09 33.62 of 20 mg/m3. With an averaging Average 1.62 5.74 5.63 4.88 3.99 3.37 4.16 4.31 3.52 5.18 2.21 4.14 4.06 value of 4.06 mg/m3. % of 100 97.62 100 100 99.93 100 99.93 100 100 99.87 99.93 100 99.77 Compliance: Total PM Minimum: 0.33 0.12 1.39 0 1.66 1.93 3.29 2.03 0 2.12 0.51 2.08 1.29 Annual averaging results showed (Daily Average) that >99% complied with the Limit Maximum: 3.08 17.28 12.26 59.81 5.6 5.47 7.06 5.43 4.84 9.98 3.13 8.4 11.86 of 10 mg/m3. With an averaging Average 1.62 5.74 5.63 4.88 3.99 3.37 4.16 4.31 3.52 5.18 2.21 4.14 4.06 value of 4.06 mg/m3. % of 100 93.75 100 100 100 100 100 100 100 100 100 100 99.48 Compliance:

3. F3 SO2 Minimum: 0 0.11 0 0 0.02 0.26 0.14 0 0 0 0 0 0.04 Annual averaging results showed (30 min Average) that >99.8% complied with the Limit Maximum: 134.68 165.03 165.6 153.63 220.7 1111.85 2248.07 3235.9 3615.17 1096.29 157.84 2732.99 1253.15 of 200 mg/m3. With an averaging Average 53.62 55.05 75.01 65.95 55.36 62.35 54.93 98.39 14.43 26.13 51.23 41.08 54.46 value of 54.46 mg/m3. % of 100 100 100 100 99.87 98.96 99.80 100 99.72 99.40 100 100 99.8 Compliance:

SO2 Minimum: 4.53 14.88 38.1 0 24.96 22.74 21.78 15.94 0 0 3.95 0.1 12.25 Annual averaging results showed that >99% complied with the Limit (Daily Average) 77.59 Maximum: 87.13 112.91 153.63 79.05 94.68 87.05 779.46 225.76 145.1 107.39 96.65 170.5 of 100 mg/m3. With an averaging Average 53.62 55.05 75.01 65.95 55.36 62.35 54.93 98.39 14.43 26.13 51.23 41.08 54.46 value of 54.46 mg/m3.

% of 100 100 100 100 100 100 100 100 97.92 93.75 97.92 100 99.13 Compliance:

HF Minimum: 0 0.08 0.1 0 0.01 0.01 0.01 0 0 0 0 0 0.02

Page 6-69 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

No. CEMS CEMS Record Analysis Findings Location Parameters Remarks Month-Y2018 J F M A M J J A S O N D Average (30 min Average) Maximum: 1.43 1.02 1.18 1.06 1.31 7.97 2.76 23.08 25.87 24.52 24.97 24.97 11.68 Annual averaging results showed Average 0.47 0.47 0.56 0.54 0.40 0.47 0.54 0.86 0.10 0.64 1.91 8.41 1.28 that >98% complied with the Limit of 2 mg/m3. With an averaging value % of 100 100 100 100 100 99.86 99.93 100 99.65 97.78 85.07 100 98.5 of 1.28 mg/m3. Compliance: HF Minimum: 1.99 0.28 0.29 0.15 0.22 0.14 0.26 0.21 0 0 0.01 0.45 0.33 Annual averaging results showed (Daily Average) that >97% complied with the Limit Maximum: 7.2 0.69 0.77 0.74 0.53 0.71 0.78 5.7 1.76 1.61 10.63 24.93 4.67 of 1 mg/m3. With an averaging value Average 0.47 0.47 0.56 0.54 0.40 0.47 0.54 0.86 0.10 0.64 1.91 8.41 1.28 of 1.28 mg/m3. % of 100 100 100 100 100 100 100 100 97.92 95.83 79.17 100 97.74 Compliance: Total PM Minimum: 1.7 0.34 0.18 0 0.05 0.87 1.34 0.35 0.1 0.32 0 0 0.44 Annual averaging results showed that >99.9% complied with the Limit (30 min Average) Maximum: 12.42 17.02 11.51 32.93 17.68 8.95 32.54 24.53 42.6 28.57 16.8 51.43 24.75 of 20 mg/m3. With an averaging Average 5.34 5.70 3.23 3.36 3.87 2.92 6.69 3.28 2.29 3.97 1.06 3.48 3.77 value of 3.77 mg/m3. % of 100 100 100 100 100 100 99.60 100 99.51 99.93 100 100 99.92 Compliance: Total PM Minimum: 1.99 4.13 1.68 1.32 1.78 1.58 2.43 0.64 0 1.84 0.25 0.89 1.5 Annual averaging results showed that >99% complied with the Limit (Daily Average) Maximum: 7.2 7.58 5.76 5.87 6.58 4.3 14.55 12.76 10.11 7.68 2.85 8.4 7.8 of 10 mg/m3. With an averaging Average 5.34 5.70 3.23 3.36 3.87 2.92 6.69 3.28 2.29 3.97 1.06 3.48 3.77 value of 3.77 mg/m3. % of 100 100 100 100 100 100 99.60 100 97.92 100 100 100 99.79 Compliance: Plant 2 Operation

4. F4 SO2 Minimum: 0 0.01 0 0 0.01 0.17 0.29 0 0 0 0 0 0.04 Annual averaging results showed (30 min Average) that >99.8% complied with the Limit Maximum: 229.9 163.04 270.43 181.36 211.21 243.4 142.13 322.97 350.86 245.72 149.53 196.22 225.56 of 200 mg/m3. With an averaging Average 63.88 75.42 69.88 53.60 61.25 79.99 74.16 65.33 32.50 70.11 45.74 45.92 61.48 value of 61.48 mg/m3. % of 99.73 100 99.73 99.73 99.87 99.86 100 100 99.72 99.46 100 99.73 99.82 Compliance:

SO2 Minimum: 22.48 41.03 6.46 12.54 27.2 53.64 48.06 25.54 28.29 34.19 17.54 23.6 28.38 Annual averaging results showed (Daily Average) that >97% complied with the Limit Maximum: 108.22 95.56 113.75 101.83 104.23 108.15 92.8 90.37 104.94 102.24 77.49 87.9 98.96 of 100 mg/m3. With an averaging Average 63.88 75.42 69.88 53.60 61.25 79.99 74.16 65.33 62.05 70.11 45.74 45.92 63.94 value of 63.94 mg/m3. % of 95.83 100 99.73 95.83 97.92 97.92 100 95.83 97.92 95.83 100 95.83 97.72 Compliance: HF Minimum: 0.21 0.32 0 0 0.42 0.5 0.05 0 0 0 0 0 0.125 Annual averaging results showed (30 min Average) that >99% complied with the Limit Maximum: 5.24 8.6 1.55 3.28 2.79 1.73 1.17 3.13 3.11 4.58 4.9 6.31 3.87 of 2 mg/m3. With an averaging value Average 0.73 0.77 0.71 0.70 0.84 0.81 0.65 0.73 0.71 0.84 0.83 0.72 0.75 of 0.75 mg/m3.

% of 99.80 99.48 99.80 99.80 99.93 100 100 99.80 99.86 97.58 96.88 99.80 99.39 Compliance:

HF Minimum: 0.42 0.47 0.41 0.43 0.44 0.8 0.05 0.55 0.39 0.37 0.53 0.19 0.42

Page 6-70 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

No. CEMS CEMS Record Analysis Findings Location Parameters Remarks Month-Y2018 J F M A M J J A S O N D Average (Daily Average) Maximum: 0.99 1.27 0.94 0.9 1 0.9 0.81 1.05 0.92 1.25 1.4 1.11 1.05 Annual averaging results showed Average 0.73 0.77 0.71 0.70 0.84 0.81 0.65 0.73 0.71 0.84 0.83 0.72 0.75 that >98% complied with the Limit of 1 mg/m3. With an averaging value % of 100 97.92 100 100 97.92 100 100 100 100 93.75 87.5 100 98.1 of 0.75 mg/m3. Compliance:

NO2 Minimum: 0.18 0.02 0 0 0.01 0.02 0.01 0 0 0 0 0 0.02 Annual averaging results showed (30 min Average) that 100% complied with the Limit Maximum: 0.32 3.27 0.34 0.34 0.32 0.31 0.28 0.31 0.26 0.26 2.19 1.82 0.835 of 400 mg/m3. With an averaging Average 0.24 0.25 0.25 0.27 0.19 0.15 0.17 0.14 0.11 0.15 0.19 0.13 0.19 value of 0.19 mg/m3. % of 100 100 100 100 100 100 100 100 100 100 100 100 100 Compliance:

NO2 Minimum: 0.16 0.22 0.23 0.23 0.09 0.11 0.08 0 0.05 0.01 0.12 0.07 0.11 Annual averaging results showed that 100% complied with the Limit (Daily Average) Maximum: 0.27 0.28 0.29 0.31 0.3 0.23 0.27 0.29 0.2 0.2 0.25 0.26 0.26 of 200 mg/m3. With an averaging Average 0.24 0.25 0.25 0.27 0.19 0.15 0.17 0.14 0.11 0.15 0.19 0.13 0.19 value of 0.19 mg/m3. % of 100 100 100 100 100 100 100 100 100 100 100 100 100 Compliance: Total PM Minimum: 0.22 0.39 0 0 0.58 0.34 0.46 0 0 0 0 0 0.16 Annual averaging results showed that >99% complied with the Limit (30 min Average) Maximum: 16.21 37.28 3.71 3.28 10.11 11.47 3.88 6.87 6.37 4.84 10.78 12.4 10.6 of 20 mg/m3. With an averaging Average 3.02 3.89 0.67 0.70 1.74 1.40 1.24 1.65 1.67 1.50 2.41 2.73 1.89 value of 1.89 mg/m3. % of 100 96.28 100 99.80 100 100 100 100 100 100 100 100 99.67 Compliance: Total PM Minimum: 0.42 0.5 0.44 0 0.81 0.75 0.66 0.89 0.81 1.18 1.02 0.99 0.71 Annual averaging results showed (Daily Average) that >99% complied with the Limit Maximum: 8.48 22.36 1.74 19.03 4.37 4.67 2.5 5.16 3.51 2.6 5.38 5.86 7.14 of 10 mg/m3. With an averaging Average 3.02 3.89 0.67 1.32 1.74 1.40 1.24 1.65 1.67 1.50 2.41 2.73 1.94 value of 1.94 mg/m3. % of 100 93.75 100 100 100 100 100 100 100 100 100 100 99.48 Compliance:

5. F5 SO2 Minimum: 2.73 2.38 0 0 0.01 0.01 0.01 0 0 0 0 0 0.43 Annual averaging results showed (30 min Average) that >99.8% complied with the Limit Maximum: 199.81 188.33 250.35 99.97 94 139.1 251.79 236.7 358.44 374.4 101.53 102.38 199.73 of 200 mg/m3. With an averaging Average 78.81 83.45 79.60 34.41 38.25 50.71 77.87 68.18 73.48 87.56 75.55 73.40 68.44 value of 61.48 mg/m3. % of 100 100 100 100 100 100 99.46 100 96.46 84.95 100 100 98.41 Compliance:

SO2 Minimum: 48.56 24.04 14.58 11.17 18.35 32.72 46.4 31.74 38.54 56.18 55.66 62.99 36.74 Annual averaging results showed (Daily Average) that >96% complied with the Limit Maximum: 112.7 113.74 122.74 69.36 61.17 81.03 123.43 101.84 110.47 146.21 82.9 82.42 100.66 of 100 mg/m3. With an averaging Average 78.81 83.45 79.60 34.41 38.25 50.71 77.87 68.18 73.48 87.56 75.55 73.40 68.44 value of 68.44 mg/m3.

% of 97.92 95.83 97.92 97.92 100 100 93.75 97.92 95.83 83.33 100 97.92 96.53 Compliance:

HF Minimum: 0.26 0.23 0 0 0.23 0.23 0.22 0 0 0 0 0 0.097 Annual averaging results showed that >99% complied with the Limit (30 min Average) Maximum: 2.05 8.39 2.41 3.12 1.81 1.66 4.17 2.5 1.55 3.18 3.8 22.15 4.73

Page 6-71 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

No. CEMS CEMS Record Analysis Findings Location Parameters Remarks Month-Y2018 J F M A M J J A S O N D Average 3 Average 0.71 0.63 0.69 0.71 0.74 0.69 0.68 0.64 0.65 0.69 0.74 0.99 0.7 of 2 mg/m . With an averaging value of 0.7 mg/m3. % of 99.93 99.63 99.93 99.93 100 100 99.93 99.93 100 99.06 98.26 99.93 99.71 Compliance: HF Minimum: 0.43 0.4 0.49 0.48 0.47 0.45 0.46 0.34 0.36 0.41 0.53 0.56 0.44 Annual averaging results showed (Daily Average) that >99% complied with the Limit Maximum: 0.92 1.2 0.87 0.92 0.95 0.76 0.93 0.94 0.84 1.06 1.07 3.18 1.14 of 1 mg/m3. With an averaging value Average 0.71 0.63 0.69 0.71 0.74 0.69 0.68 0.64 0.65 0.69 0.74 0.99 0.71 of 0.71 mg/m3. % of 100 97.92 100 100 100 100 100 100 100 97.92 97.92 100 99.48 Compliance:

NO2 Minimum: 0.06 0.01 0 0 0.01 0.01 0.01 0 0 0 0 0 0.008 Annual averaging results showed that 100% complied with the Limit (30 min Average) Maximum: 0.27 1.69 1.56 0.29 0.27 0.22 0.21 0.28 0.21 0.17 1.82 1.82 0.73 of 400 mg/m3. With an averaging Average 0.17 0.18 0.18 0.19 0.11 0.09 0.09 0.08 0.03 0.04 0.08 0.05 0.10 value of 0.10 mg/m3. % of 100 100 100 100 100 100 100 100 100 100 100 100 100 Compliance:

NO2 Minimum: 0.11 0.15 0.14 0.16 0.02 0.03 0.02 0 0.25 0 0.03 0.01 0.076 Annual averaging results showed that 100% complied with the Limit (Daily Average) Maximum: 0.2 0.21 0.22 0.24 0.21 0.17 0.19 0.22 6.97 0.08 0.12 0.19 0.751 of 200 mg/m3. With an averaging Average 0.17 0.18 0.18 0.19 0.11 0.09 0.09 0.08 1.34 0.04 0.08 0.05 0.22 value of 0.22 mg/m3. % of 100 100 100 100 100 100 100 100 100 100 100 100 100 Compliance: Total PM Minimum: 0.75 0.08 0 0 0.26 0.03 0.05 1.40 0.81 0 0 0 0.28 Annual averaging results showed (30 min Average) that >99.8% complied with the Limit Maximum: 14.2 62.51 13.32 17.89 14.75 5.57 6.06 5.96 2.11 3.66 80.11 8.33 19.54 of 20 mg/m3. With an averaging Average 2.97 3.33 2.12 2.83 1.89 1.11 1.09 1.40 1.34 1.21 1.40 1.66 1.86 value of 1.86 mg/m3. % of 99.93 98.74 99.93 99.93 99.66 100 100 99.93 100 100 100 99.93 99.84 Compliance: Total PM Minimum: 1.27 1.27 0.74 0.54 0.77 0.74 0.76 0.92 0.81 0.85 0.52 0.5 0.81 Annual averaging results showed (Daily Average) that >99.8% complied with the Limit Maximum: 5.27 11.51 4.68 5.98 5.23 2.21 2.15 1.40 2.11 1.75 4.78 5.64 4.4 of 10 mg/m3. With an averaging Average 2.97 3.33 2.12 2.83 1.89 1.11 1.09 2.24 1.34 1.21 1.40 1.66 1.9 value of 1.9 mg/m3. % of 100 97.92 100 100 100 100 100 100 100 100 100 100 99.83 Compliance:

6. F6 SO2 Minimum: 0 0.3 0 0 0.02 0.08 0.13 0 0.11 0 0 0 0.05 Annual averaging results showed (30 min Average) that >99% complied with the Limit Maximum: 315.03 224.02 172.51 135.64 127.03 146.04 120.19 172.08 297.08 166.34 158.03 170.58 183.7 of 200 mg/m3. With an averaging Average 68.42 71.38 59.89 45.68 49.19 65.18 73.44 68.20 68.92 76.71 64.30 50.83 63.51 value of 63.51 mg/m3.

% of 98.92 99.63 98.92 98.92 100 100 100 98.92 96.39 100 100 98.92 99.22 Compliance:

SO2 Minimum: 30.42 2.64 3.44 17.65 22.27 42.24 54.47 51.05 46.66 58.47 27.73 24.74 31.82 Annual averaging results showed that >95% complied with the Limit (Daily Average) Maximum: 114.55 116.74 134.29 67.89 79.95 92.55 93.39 108.15 96.55 93.57 95.07 77.44 97.51 of 100 mg/m3. With an averaging Average 68.42 71.38 59.89 45.68 49.19 65.18 73.44 68.20 68.92 76.71 64.30 50.83 63.51 value of 63.51 mg/m3.

Page 6-72 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

No. CEMS CEMS Record Analysis Findings Location Parameters Remarks Month-Y2018 J F M A M J J A S O N D Average % of 91.67 85.42 91.67 91.67 100 100 100 91.67 100 100 100 91.67 95.31 Compliance: HF Minimum: 0 0.04 0 0 0.04 0.07 0.04 0 0.08 0 0 0 0.02 Annual averaging results showed (30 min Average) that >99% complied with the Limit Maximum: 2.82 11.51 2.94 2.61 2.8 2.18 3.5 2.48 3.07 3.31 3.49 23.72 5.37 of 2 mg/m3. With an averaging value Average 0.59 0.64 0.70 0.70 0.65 0.61 0.64 0.65 0.66 0.71 0.70 0.94 0.68 of 0.68 mg/m3. % of 99.80 99.26 99.80 99.80 99.53 99.86 100 99.80 96.32 99.53 99.31 99.80 99.4 Compliance: HF Minimum: 0.04 0.19 0.47 0.43 0.46 0.43 0.45 0.41 0.34 0.45 0.46 0.54 0.39 Annual averaging results showed that >99.8% complied with the Limit (Daily Average) Maximum: 0.93 1.57 1.02 0.99 0.83 0.99 0.88 0.93 0.85 0.92 0.95 3.39 1.19 of 1 mg/m3. With an averaging value Average 0.59 0.64 0.70 0.70 0.65 0.61 0.64 0.65 0.66 0.71 0.70 0.94 0.68 of 0.68 mg/m3. % of 100 97.92 100 100 100 100 100 100 100 100 100 100 99.8 Compliance:

NO2 Minimum: 0.25 0.02 0 0 0.12 0.1 0.04 0 0.04 0 0 0 0.05 Annual averaging results showed that 100% complied with the Limit (30 min Average) Maximum: 0.38 3.33 1.57 0.44 0.4 0.39 0.36 0.39 0.35 0.35 1.82 1.82 0.97 of 400 mg/m3. With an averaging Average 0.33 0.34 0.34 0.35 0.28 0.27 0.26 0.22 0.20 0.22 0.25 0.20 0.27 value of 0.27 mg/m3. % of 100 100 100 100 100 100 100 100 100 100 100 100 100 Compliance:

NO2 Minimum: 0.21 0.3 0.31 0.3 0.18 0.2 0.14 0.01 0.09 0.14 0.2 0.15 0.19 Annual averaging results showed (Daily Average) that 100% complied with the Limit Maximum: 0.35 0.37 0.37 0.39 0.38 0.34 0.35 0.37 0.33 0.27 0.3 0.35 0.35 of 200 mg/m3. With an averaging Average 0.33 0.34 0.34 0.35 0.28 0.27 0.26 0.22 0.20 0.22 0.25 0.20 0.27 value of 0.27 mg/m3. % of 100 100 100 100 100 100 100 100 100 100 100 100 100 Compliance: Total PM Minimum: 0.01 0.01 0 0 2.12 0.01 0.01 0 0.06 0 0 0 0.185 Annual averaging results showed (30 min Average) that >99.8% complied with the Limit Maximum: 25.4 49.37 31.77 47.87 38.91 11.57 9.71 11.12 12.24 12.79 17.96 16.53 23.77 of 20 mg/m3. With an averaging Average 1.50 4.03 4.09 4.10 4.96 3.65 2.55 3.07 2.53 2.28 2.82 2.18 3.15 value of 3.15 mg/m3. % of 99.93 98.74 99.93 99.93 99.66 100 100 99.93 100 100 100 99.93 99.84 Compliance: Total PM Minimum: 0.26 2.05 2.55 2.41 3.55 1.46 1.75 1.41 1.56 1.78 2.1 1.37 1.85 Annual averaging results showed (Daily Average) that 100% complied with the Limit Maximum: 4.38 7.61 6.9 6.78 7.18 4.89 4.21 4.13 4.03 3.11 4.58 3.4 5.1 of 10 mg/m3. With an averaging Average 1.50 4.03 4.09 4.10 4.96 3.65 2.55 3.07 2.53 2.28 2.82 2.18 3.15 value of 3.15 mg/m3. % of 100 100 100 100 100 100 100 100 100 100 100 100 100 Compliance: Remarks: The CEMS Data is COMPLIED if: • No daily average exceeds the emission standard • No half hourly average exceeds two times of emission standard value

Page 6-73 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Based on the Y2018 record, most of the CEMS Data are observed complied with the respective permissible emission limit (>95% complied) as stipulated in Environmental Quality (Clean Air) Regulations 2014. Nonetheless, there are some occasionally exceedances for SO2, HF and Total PM were recorded. As for NO2, it was recorded 100% complied at all time.

SO2 has been monitored and controlled closely by the Project Proponent. The exceedances of SO2 is mainly due to the anode spike problem due to excessive carbon dust in the electrolyte, heaved cathode block under the anode or large sludge deposits on the cathode etc. The spikes present underside the anode lead to decease in the current efficiency as the spikes generate extra heat through formation of short circuit. However, this shall be acceptable as the exceedance events were relatively low and the maximum emission concentration recorded was below 200 mg/Nm3 (which still complied with the Permissible Emission Limit by DOE in the appeal on 21 December 2012 (DOE Letter reference: AS(PN)37/209/101/084 Jld 3 (29)) (Appendix F).

Summary of the monthly average value of the SO2 Emission Concentration for Y2018 is as shown below, which is fully complied with the permissible limit of 200 mg/Nm3.

Table 6-27 SO2 Emission Concentration Y2018

CEMS Data - Average Value

Y2018 F1 F2 F3 F4 F5 F6 Jan 65.58 57.79 53.62 63.88 78.81 68.42 Feb 65.46 63.21 55.05 75.42 83.45 71.38 Mar 77.82 88.12 75.01 69.88 79.6 59.89 Apr 75.79 65.03 65.95 53.6 34.41 45.68 May 56.42 54.54 55.36 61.25 38.25 49.19 Jun 65.2 67.92 62.35 79.99 50.71 65.18 Jul 75.17 78.02 54.93 74.16 77.87 73.44 Aug 119.71 113.21 98.39 65.33 68.18 68.2 Sep 13.8 13.55 14.43 62.05 73.48 68.92 Oct 32.21 9.47 26.13 70.11 87.56 76.71 Nov 69.37 55.66 51.23 45.74 75.55 64.3 Dec 41.34 51.91 41.08 45.92 73.4 50.83

Annual 63.16 59.87 54.46 63.94 68.44 63.51 62.23 Permissible Emission Limit 200 (mg/Nm3)

Page 6-74 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

6.7.2.1 CO2 and Perfluorocarbon (PFC) Yearly Monitoring

Apart from the above, monitoring of Carbon Dioxide (CO2) and Perfluorocarbon (PFC) emission from the Fume Treatment System (FTS) shall be conducted once a year as per as per EIA Approval Condition No: 31 for Plant 2 Expansion (AS(PN)37/209/101/084 Jld 4 (72); dated 16 October 2015).

The monitoring was carried out in December Y2018 and the results showed that CO2 emission was <1% of the total flue gas for each FTS and the PFC measurement was complied with the recommended limit of 0.1 anode effects per cell per day. The results are tabulated as shown below (Table 6-28):

Table 6-28 CO2 and PFC Monitoring Results

CO Perfluorocarbon (PFC) Stack ID 2 (%) (anode effects /cell/day)

Protocol for Measurement of Tetrafluoromethane (CF4) and Hexafluoroethane (C2F6) Test Method US EPA Method 3A Emissions from Primary Aluminum Production, USEPA and the International Aluminium Institute, 2008

F1 0.96 0.0994

F2 0.95 0.0788

F3 0.90 0.0871

F4 0.97 0.0810

F5 0.98 0.0656

F6 0.93 0.0986

Recommended Limit < 0.1 anode effects per cell - per day

Note: Recommended limit as proposed in the Best Available Techniques Guidance Document on Non- Ferrous Metal Industry.

Environmental Compliance Audit Findings The latest environmental compliance audit (ECA) which assesses the existing plant’s compliance with the Environmental Quality Act 1974 and its accompanying regulations and related approvals was conducted on 30 October 2018 – 2 November 2018 by an independent third-party auditor.

Page 6-75 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Based on the audit findings, there are four (4) observations (OBR) and 11 non-compliance report (NCR) and raised during the audit session, as described in Table 6-29.

Table 6-29 ECA 2018 Findings

Regulation or COA Regulation/ COA No. Description of Findings Title/Reference Number/ Item 1. Observation 1.1 Plant 1 Clogged drain was observed along Road 10. Mosquito larvae were also observed at stagnant water on the floor a. - - near the drain. Similarly, vegetation growth was also clogging perimeter drain at buffer zone of Plant 1 and Plant 2. 1.2 Plant 2 The facility has yet to update the layout plan for new buildings and structures such a. - - as casthouse, carbon butts warehouse, alumina silos and crucible cleaning. Clogged drains were observed b. - - along Road 10 to Road 12 and Road 14. Stagnant waters were observed at the storage of c. - - dismantled toilet facilities at the Civil Yard area. 2. Non Compliance 2.1 Plant 1 Storage of alumina was DEIA Conditions of Approval Approval Condition observed at open area of a. AS(PN)37/209/101/084 Jld. 3 No. 8 Fume Treatment No. 1, No. 2 dated 9 February 2012 and No. 3. DEIA Conditions of Approval AS(PN)37/209/101/084 Jld. 3 Approval Condition One new bag filter system dated 9 February 2012 No. 8 being installed at Anode b. Rodding Section is yet to be Environmental Quality (Clean Regulation No 5 notified to the DOE. Air) Regulations 2014

Page 6-76 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Regulation or COA Regulation/ COA No. Description of Findings Title/Reference Number/ Item DEIA Conditions of Approval Rags contaminated with oil AS(PN)37/209/101/084 Jld. 3 Approval Condition were not properly collected at dated 9 February 2012 No. 47 the Transport Workshop. c. Traces of oil from the rags Environmental Quality Regulation No 8(1) were observed seeping into (Scheduled Wastes) the perimeter drain. Regulations 2005 DEIA Conditions of Approval Several empty paint containers AS(PN)37/209/101/084 Jld. 3 Approval Condition were not properly collected at dated 9 February 2012 No. 47 Fume Treatment No.3 area. d. Leakage of paint to the floor Environmental Quality Regulation No 8(1) was also observed due to rusty (Scheduled Wastes) containers. Regulations 2005 DEIA Conditions of Approval Based on labels, storage of Approval Condition e. AS(PN)37/209/101/084 Jld. 3 SW421 and SW102 has No. 47 dated 9 February 2012 exceeded 180 days. Seepage of oil and water mixture to the drain was observed from the secondary containment of diesel storage DEIA Conditions of Approval Approval Condition at casthouse. The seepage f. AS(PN)37/209/101/084 Jld. 3 No. 50 was due to prolong dated 9 February 2012 accumulation of water and oil mixture inside the secondary containment as leakage from the roof was noted. 2.2 Plant 2 Open storage of alumina was DEIA Conditions of Approval Approval Condition noted at open area between a. AS(PN)37/209/101/084 Jld. 4 No. 8 anode storage and air dated 16 October 2015 compressor station. Significant dust generation were observed from loading of DEIA Conditions of Approval Approval Condition alumina to road tanker inside b. AS(PN)37/209/101/084 Jld. 4 No. 37 the warehouse. Spilled dated 16 October 2015 alumina was also significant outside the warehouse. Significant dust generation DEIA Conditions of Approval Approval Condition were observed from handling c. AS(PN)37/209/101/084 Jld. 4 No. 37 of used carbon butts outside dated 16 October 2015 the warehouse.

Page 6-77 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

Regulation or COA Regulation/ COA No. Description of Findings Title/Reference Number/ Item DEIA Conditions of Approval Used paint containers, used Approval Condition d. AS(PN)37/209/101/084 Jld. 4 grease and oil were not No. 44 dated 16 October 2015 properly collected at Civil Yard. Uncollected solid wastes especially plastic drinking water bottles were observed at the construction area of DEIA Conditions of Approval Approval Condition casthouse. e. AS(PN)37/209/101/084 Jld. 4 No. 60 dated 16 October 2015 Solid wastes were also noted near compressor building and outside the collection bin near the canteen. Source: ECA Report, 2018

Other audit findings are as follows:

Good Practices – Plant 1

1. Continuous efforts were noted by all departments to implement 5S at their own work area. 2. Written notification for the installation of 11 units holding furnace with two (2) unit chimney at casting house has been submitted to DOE Bintulu on 10 January 2018 and acknowledged by DOE on 22 January 2018 (Ref: AS(BTU)(B): 91/110/900/003 Jilid 21 (10)). Written declaration has also been submitted to DOE Bintulu on 28 May 2018 and acknowledged received on 30 May 2018 (Ref: AS(BTU)(B): 91/110/900/003 Jilid 24(1)). 3. Written notification for the installation of three (3) unit dust collector located at Samalaju Industrial Port has been submitted to DOE on 23 May 2018 and acknowledged on 22 June 2018 (Ref: AS(BTU)(B): 91/110/900/003 Jld 24 (18)). 4. The facility has obtained special waste management approval from DOE on 29 August 2018 to reuse iron dross (SW104) generated at Plant 1 and Plant 2 as alternative raw materials at concrete batching plant (Ref: AS(BB)91/110/619/355 Jld. 1(3)). In addition, Associated Pan Malaysia Cement Sdn Bhd has also obtained approval from DOE to receive spent pot lining (SW104) from Press Metal (Ref: JAS(BB) 36/921/000/003 Jilid 11(5) dated 29 August 2018). 5. Notification for new generation of scheduled wastes, namely spent pot lining (SW104) and spent coolant (SW327) has been submitted to DOE Bintulu on 15 March 2018 (Ref: PMBTU/EHS/Letter/0315/0034). Similarly, notification for generation of spent inorganic acid (SW206) and obsolete laboratory chemicals (SW430) has also been submitted to DOE Bintulu on 28 August 2018 (Ref: PMBTU/EHS/Letter/0828/0084).

Page 6-78 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019

6. Monitoring results for ambient air, water quality, ambient noise, stack emission, sewage and final effluent for the period of quarter 4, 2017 to Quarter 3, 2018 were in compliance with the permissible limits. 7. Desludging of septic tank within the plant and workers’ hostels was conducted on 1 March 2018 by the appointed contractor, KA BAN Enterprise. 8. The CEMS were observed functioning during audit site visit. Relative Accuracy

Audit (RRA) report for Total PM and SO2 analyzer installed at fume treatment

chimneys were available from quarter 4, 2017 to quarter 2, 2018. Faulty SO2 sensor was notified to DOE on 22 September 2018 and has been replaced with the new one.

Good Practices – Plant 2

1. Continuous efforts were noted by all departments to implement 5S at their own work area. 2. The facility has submitted written notification for the installation of five (5) unit dust collector at alumina conveyor belt to DOE on 10 April 2018 and was acknowleged by DOE Bintulu on 30 April 2018 (Ref: AS(BTU)(B):91/110/900/003 Jilid 23(8)). At the same time, written declaration was submitted to DOE on 23 May 2018 and acknowledged by DOE Bintulu on 30 May 2018 (Ref: AS(BTU)(B): 91/110/900/003 Jld. 24 (8)). 3. The facility has submitted written notification to DOE for one (1) unit dust collector at casthouse, one (1) unit at anode rodding and one (1) unit at crucible cleaning on 23 October 2018 through the appointed consultant, Compliance Testing Resources. 4. Emergency evacuation drill for chemical spillage, fire and injured person handling has been conducted on 25 January 2018 at anode rodding department. 5. The facility has included the monitoring results for perfluorocarbon (PFC) and carbon dioxide in environmental monitoring report (EMR) for quarter 4, 2017. 6. The CEMS were observed functioning during audit site visit. Relative Accuracy

Audit (RRA) report for Total PM and SO2 analyzer installed at fume treatment chimneys were available from quarter 4, 2017 to quarter 2, 2018.

6.8 EIA STUDIES UNDERTAKEN Past approved EIA studies relevant for the EIA for Project are EIA studies carried out and approved for development of Plant 1 and development of Plant 2 in 2012 and 2014, respectively. The description of the respective EIA studies is as tabulated in Table 1-1 (refer to Chapter 1).

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