Comprehensive Solution for Water Resource Management YOOIL ENGINEERING CO.,LTD We Dream of a Future without Any Compromise. Global climate change has brought about unexpected weather conditions and unprecedented natural disasters and anticipating what will happen is becoming even harder. It is our fervent desire to apply our expertise to prevent the spread of catastrophes caused by reckless development and build a sustainable future without any compromise. At YOOIL Engineering, we devote Global climate change is upon us and a ourselves to tackle global problems to mere passive adherence to make the world a better place for the future generation. As engineers and environmental regulations and laws technicians, we have always put just is not enough. innovation as the core foundation of our business. Through the continuous investment in research and development, we have obtained over 30 patents and rights on inflatable Rubber Dams, canal lining, and dam safety. We seek to utilize our knowledge to provide a customized and cutting-edge solution to cater to our customers’ need. It would be truly meaningful if you could join us on our endeavor to build a sustainable future without any compromise. Dr. Jae Hyouk Lee President and CEO CORPORATE OVERVIEW CORPORATE NAME: LINE OF WORK: LEGAL FORM: YOOIL ENGINEERING Construction and Mechanical Work Corporation (Limited Liability) 2 ONE STOP SOLUTION TO WATER RESOURCE MANAGEMENT WATER LEVEL DAM SAFETY CONTROL WATERPROOFING Quick and non-intrusive Proven to last over 40 years, technology used to identify, No more flash floods or our bituminous map and model preferential droughts. Always maintain geomembranes has groundwater flow paths. optimal water levels by superior durability, Easiest and most accurate controlling it wirelessly resistance to toxins, and way to detect and prevent wherever you are can even be used for dam leakage impounding potable water BUSINESS AREA Planning, manufacturing, and installation of Rubber Mechanical Works Dams and Reservoirs Plant Equipment and Pipe Earth Works Laying Construction Manufacturing, installation, International Trade and transportation of metalworks 3 YOOIL ENGINEERING’S PAST AND PRESENT. OUR FUTURE. COMPANY HISTORY 1989 2002 2005 2012 2013 2015 YOOIL Chosen for Certification for Received award Hidden Chosen for ENGINEERING Product INNO-BIZ for “Export over Champion Product Established Excellence (Innovation 3 million dollars” Award Excellence by by the Public award) the Public Procurement Received the Procurement Service Prime Minister Service (‘Pocket (‘Rubber Dam’) Citation Dam’) GLOBAL EXPERIENCE 400+Domestic 35+International NORTH AMERICA EUROPE ASIA Canada Turkey Hong Kong Philippines United States India South Korea Malaysia Taiwan Pakistan 4 CONTINUOUS INNOVATION AT THE FOREFRONT OF BUSINESS. CERTIFICATES & LICENSES COMPANY LOCATION YOOIL ENGINEERING 4th floor (Ganghwa Bldg) 14-10, YANGHWA-RO 11-GIL MAPO-GU, SEOUL REPUBLIC OF KOREA +822-325-2394~6 +822-325-2397 [email protected] 5 A Comprehensive Solution for Proper Water Management Dam Safety – 2D&3D Imaging Technology for Dam Inspection Using this technology YOOIL is able to provide dam inspection services without having to conduct complicated explorations or cause harmful effects to the environment. The 2D&3D imaging method is a quick and non-intrusive technology used to identify, map, and model preferential groundwater flow patterns/paths. This method enables us to render either 2D maps or 3D models of groundwater flow paths. It establishes a signature electric circuit within the groundwater of interest, which then reveals the flow and distribution of subsurface electric current. Measured data is processed and compared to the expected magnetic field from a theoretical homogeneous earth model to highlight the anomalies. A magnetic field forms as the two dipoles, installed on either side of the dam, is charged with AC electric current. The electric current concentrates in areas where there is water, and this enables YOOIL to measure and observe the magnetic field, which then reveals the flow path of water leakage. 6 A Comprehensive Solution for Proper Water Management Water Resource Management Movable Rubber Dam System The Rubber Dam (Weir) system allows for a quick and easy solution to maintaining set water levels. Our system is equipped with water level sensors which transmits data to the control house wirelessly. The control house calculates the appropriate rubber dam height according to pre-set values and automatically inflates or deflates the rubber dam. The EPDM material is capable of withstanding harsh weather climates and could last up to 30 years with normal operations. Due to this highly durable nature of the Rubber Dam, it could withstand sediments such as rolling rocks and heavy logs without any problem. The materials used for the Rubber Dam also does not emit any harmful toxins into the riverbed and the FITI certification we have acquired is a testament to our commitment to conserving the environment. 7 A Comprehensive Solution for Proper Water Management Waterbed Waterproofing and Canal Lining Bituminous Geomembrane is an innovative solution for waterproofing various structures such as dams, irrigation canals, and toxic waste basins With a proven durability of up to 40 years, it could withstand direct UV rays, and is resistant to toxic chemicals, punctures, oxidation and elongation. The superior durability performance allows for the geomembrane to be installed without any cover-up material, which makes the installation process much quicker and more efficient compared to other commonly used materials such as HDPE, PVC and LLDPE. The Bituminous Geomembrane is especially suitable for canal linings as it has excellent Manning Coefficient. By maintaining a constant contact with the subgrade without wrinkling, the flow speed of the river is kept at a constant high level, enabling the canal to be used as hydro-energy power plants by installing small turbines. 8 Project Reference List (Domestic) No. Completion Date Dimensions (mHxmL) Site Location 1 May-1988 1.0mH × 30.0mL Daedoek research institute, Daejeon, Korea 2 Jan-1988 1.0mH × 100.0mL Kumgang(Riv.),Okcheon, Chungcheongbuk-do, Korea 3 Nov-1988 1.6mH × 30.0mL Geumhogang(Riv.), Daegu, Korea 4 Dec-1988 1.8mH × 60.0mL Sincheon#7(Riv.), Daegu, Korea 5 Dec-1988 2.0mH × 60.0mL Sincheon#6(Riv.), Daegu, Korea 6 Dec-1988 1.5mH × 50.0mL Anyangcheon(Riv.), Anyang, Gyeonggi-do, Korea 7 Jul-1990 2.0mH × 28.0mL Incheon reservoir, Incheon, Korea 8 Sep-1990 2.2mH × 50.0mL Sincheon#8(Riv), Daegu, Korea 9 Aug-1991 1.5mH × 50.0mL Tancheon#1(Riv.), Seongnam, Gyeonggi-do, Korea 10 Dec-1991 0.8mH × 70.7mL Sanggung reservoir, Boun, Chungcheongbuk-do, Korea 11 Jan-1992 1.0mH × 100.0mL Gapcheon(Riv.), Daejeon, Korea 12 Apr-1992 1.5mH × 38.0mL Woncheoncheon(Riv.), Suwon, Gyeonggi-do, Korea 13 May-1992 2.2mH × 80.0mL Bokhacheon(Riv.), Icheon, Gyeonggi-do, Korea 14 Jun-1992 2.3mH × 50.0mL Seomjingang(Riv.), Jeongeup, Jeollabuk-do, Korea 15 Jul-1992 1.0mH × 13.0mL Mukhyeoncheon#1(Riv.), Namyangju, Gyeonggi-do, Korea 16 Jul-1992 1.0mH × 17.0mL Mukhyeoncheon#2(Riv.), Namyangju, Gyeonggi-do, Korea 17 Jul-1992 1.5mH × 30.0mL Jeongeupcheon(Riv.), Jeongeup, Jeollabuk-do, Korea 18 Aug-1992 1.5mH × 60.0mL Tancheon#2(Riv.), Seongnam, Gyeonggi-do, Korea 19 Sep-1992 2.3mH × 195.0mL(3SPAN) Gapcheon(Riv.), Daejeon, Korea 20 Dec-1992 1.5mH × 38.0mL Woncheoncheon#2(Riv.), Suwon, Gyeonggi-do, Korea 21 Apr-1993 0.8mH × 20.0mL Sucheongbo(Riv.), Daejeon, Korea 22 Jun-1993 1.5mH × 80.0mL Sincheon(Riv.), Dongducheon, Gyeonggi-do, Korea 23 Jun-1993 1.5mH × 50.0mL Tancheon#3(Riv.), Seongnam, Gyeonggi-do, Korea 24 Jun-1993 1.5mH × 60.0mL Tancheon#4(Riv.), Seongnam, Gyeonggi-do, Korea 25 Jun-1993 1.5mH × 50.0mL Tancheon#5(Riv.), Seongnam, Gyeonggi-do, Korea 26 Dec-1993 1.2mH × 130.0mL Yocheon#1(Riv.), Namwon, Jeollabuk-do, Korea 27 Jun-1995 1.2mH × 120.0mL Yocheon#2(Riv.), Namwon, Jeollabuk-do, Korea 28 Apr-1996 1.5mH × 70.0mL Wangsukcheon#1(Riv.), Namyangju, Gyeonggi-do, Korea 29 Apr-1996 1.5mH × 60.0mL Wangsukcheon#2(Riv.), Namyangju, Gyeonggi-do, Korea 30 May-1996 1.5mH × 60.0mL Tancheon#6(Riv.), Seongnam, Gyeonggi-do, Korea 31 Jul-1996 1.5mH × 400.0mL(5SPAN) Nakdonggang(Riv.), Andong, Gyeongsangbuk-do, Korea 9 32 Feb-1996 1.5mH × 37.8mL Sincheon#7-1(Riv.), Daegu, Korea Project Reference List (Domestic) No. Completion Date Dimensions (mHxmL) Site Location 33 Feb-1996 1.5mH × 37.8mL Sincheon#7-2(Riv.), Daegu, Korea 34 Feb-1996 0.5mH × 59.0mL Sincheon#3-1(Riv.), Daegu, Korea 35 Jan-1997 1.5mH × 160.0mL(3SPAN) Namgang(Riv.), Jinju, Gyeongsangnam-do, Korea 36 Feb-1997 1.5mH × 150.0mL(3SPAN) MirYanggang#1(Riv.), MirYang, Gyeongsangnam-do, Korea 37 Mar-1997 0.99mH × 23.0mL Yangjaecheon#1(Riv.), Seoul, Korea 38 Mar-1997 1.12mH × 13.1mL Towolcheon(Riv.),Changwon, Gyeongsangnam-do, Korea Gaeumjeongcheon(Riv.), Changwon,Gyeongsangnam-do, Kore 39 Mar-1997 0.75mH × 10.1mL a 40 Mar-1997 0.72mH × 15.0mL Hakuicheon(Riv.), Anyang, Gyeonggi-do, Korea 41 Mar-1997 1.5mH × 60.0mL Cheongmicheon(Riv.), Icheon, Gyeonggi-do, Korea 42 Apr-1997 0.8mH × 96.0mL Seongsanbo(Riv.), Daejeon, Korea 43 Jan-1998 1.2mH × 76.0mL Yudeungcheon(Riv.), Daejeon, Korea 44 1.5mH × 9.0mL 45 Aug-1998 1.4mH × 13.5mL Banpo reservoir, Seoul, Korea 46 1.2mH × 28.0mL 47 Feb-1999 0.8mH × 12.0mL Jaedeokcheon(Riv.), Jinhae, Gyeongsangnam-do, Korea 48 Apr-1999 0.6mH × 6.0mL Dononggang(Riv.), Namyangju, Gyeonggi-do, Korea 49 Jul-1999 1.0mH × 62.0mL(2SPAN) Sangdongbo, Sincheon(Riv.), Daegu, Korea 50 Jul-1999 1.0mH × 34.0mL