Cemented Carbide, Cemented Carbide Tool, Coated Cemented Carbide, and Coated Cemented Carbide Tool DUET Industrial Co., LTD. - Japan Pagel of 11 11 Date of issue: 22 d June, 2015

SAFETY DATA SHEET

Section 1: Identification Product identifier used on the label; Product name: Cemented Carbide, Cemented Carbide Tool, Coated Cemented Carbide, and Coated Cemented Carbide Tool

Other means of identification; No information

Recommended use of the chemical and restrictions on use; Recommended usc: Cutting tools mainly for metallic materials, wear-resistant tools for plastic forming process, tools for macadam, civil engineering, and urban development, etc. Restrictions on usc: No information

Name, address, and telephone number of the chemical manufacturer, importer, or other responsible party; Name: DIJET Indusn·ial Co., LTD.- Japan Department in Charge: Quality Assurance Department Address: 2-1-18, Kami-Higashi, Hirano-ku, Osaka 547-0002, Japan Telephone number: +81-6-6794-6444 Fax number: +81-6-6793-3904 e-mail address:

Emergency phone number +81-6-6794-6444

Section 2: Hazard(s) identification Classification of the chemical in accordance with paragraph (d) of§l910.1200; Physical Hazards Not classified

Health Hazards Respiratory sensitization: Category I Skin sensitization: Category! Germ cell mutagenicity: Category2 Carcinogenicity: Category2 Reproductive toxicity: Category2 Specific target organ toxicity single exposure: Category! (respiratory system, kidney), Category2(systemic toxicity) Category3(respiratory irritation) Specific target organ toxicity repeated or Categoryl(respiratory system) prolonged exposure: Cemented Carbide, Cemented Carbide Tool, Coated Cemented Carbide, and Coated Cemented Carbide Tool DIJET Industrial Co., LTD. - Japan Pagc2 of II Date of issue: 22nd June, 2015 Environmental Hazards Hazardous to the aquatic environment (chronic) Category4

Other Hazards No information

Signal word, hazard statement(s), symbol(s) and precautionary statemcnt(s) in accordance with paragraph (f) of §1910.1200;

Symbol(s)

Signal word Danger Hazard Statement(s) May cause an allergic skin reaction May cause allergy or asthma symptoms or breathing difficulties if inhaled May cause respiratoty irritation Suspected of causing genetic defects Suspected of causing cancer Suspected of damaging fertility or the unborn child Causes damage to respiratory system, kidney May causes damage to systemic toxicity Causes damage to respiratory system through prolonged or repeated exposure May cause long lasting harmful effects to aquatic life Precautionary Statcment(s) [Prevention] Obtain special instructions before use. Do not handle until all safety precautions have been read and understood. Do not breathe dust/fume/gas/mist/ vapors/spray. Wash hands thoroughly after handling. Do not eat, drink or smoke when using this product. Use only outdoors or in a well-ventilated area. Contaminated work clothing must not be allowed out of the workplace. Avoid release to the environment. Wear protective gloves/protective clothing/eye protection/face protection. [In case of inadequate ventilation] wear respiratory protection. [Emergency response] If on skin: Wash with plenty of water. If inhaled: Remove person to fresh air and keep comfortable for breathing. If exposed or concerned: Call a poison center/doctor. If exposed or concerned: Get medical advice/attention. Cemented Carbide, Cemented Carbide Tool, Coated Cemented Carbide, and Coated Cemented Carbide Tool DUET Industrial Co., J:I'D. - Japan Page3 of 11 11 Date of' issue: 22 d June, 2015 Get medical advice/attention if you feel unwell. If skin irritation or rash occurs: Get medical advice/attention. If experiencing respiratOiy symptoms: Call a poison center/doctor. Wash contaminated clothing before reuse. [Storage] Store in a weB-ventilated place. Keep container tightly closed. Store locked up. [Disposal] Dispose of contents/container in accordance with Iocallregional/national/international regulations.

Description of any hazards not otherwise classified; No information

Ingredient with unknown acute toxicity in the mixture Not applicable

Section 3: Composition/information on ingredients Compositions (contents of the product) Chemical name CAS No. Concentration/concentration ranges (wt %) Tungsten carbide 12070-12-1 55-99 Tantalum carbide 12070-06-3 0-20 Niobium carbide 12069-94-2 0-20 Titanium carbide 12070-08-5 0-20 Titanium nitride 25583-20-4 0-5 Vanadium carbide 12070-10-9 0-5 Cobalt 7440-48-4 0-30 Nickel 7440-02-0 0-30 Chromium 7440-47-3 0-5 Cemented Carbide may be coated with the fo11owing substances.

A IN, AI,03, (Al,Ti)N, B4C, Cr3C2, CrN, MoS2, Ti(B,C,N), TiC, (Ti,Zr)N, WC,C(daiamond,DLC)

Section 4: First-aid measures Necessary first-aid measures by relevant routes of exposure; IF INHALED If the high concentration of dust fi·om grinding scraps is inhaled or respiratory symptoms (coughs, gasping, shortness of breath, etc.) are experienced, evacuate and isolate the workplace. If breathing difficulties occur, administer inhalation. If breathing has stopped, immediately administer artificial respiration and get medical advice/attention. If irritation or rash persists, get medical advice and attention. IFON SKIN If dust from grinding scraps is contacted with skin, take off contaminated clothing and rinse the affected area with soapy water thoroughly. If itTitation or rash persists, get medical advice/attention. IF IN EYES If dust from grinding scraps is in eyes, immediately wash away with clean water. If irritation persists, get medical advice/attention. Cemented Carbide, Cemented Carbide TooL Coated Cemented Carbide. and Coated Cemented Carbide Tool DUET Industrial Co., LTD. ~ Japan Page4 of II Date of issue: 22nd June, 2015 IF SWALLOWED If a large amount of dust is swallowed, get medical advice/attention after ingesting plenty of water to dilute.

Most important symptoms/effects, acute and delayed; May cause an allergic skin reaction May cause allergy or asthma symptoms or breathing difficulties if inhaled May cause respiratory irritation Suspected of causing genetic defects Suspected of causing cancer Suspected of damaging fertility or the unborn child Causes damage to respiratmy system, kidney May causes damage to systemic toxicity Causes damage to respiratmy system through prolonged or repeated exposure

Indication of immediate medical attention and special treatment needed, if necessary; No information

Section 5: Fire-fighting measu_::.r:..:e::.s______Suitable (and unsuitable) extinguishing media; Suitable extinguishing media: To extinguish the fire of dusts resulting from grinding, use dry sand, dry dolomite, ABC type (general, oil, electric fire) powder extinguishers or water.

Unsuitable extinguishing media No water allowed for the dust containing cut powders of light metal such as magnesium and aluminum.

Specific hazards arising from the chemical; General caution; powdered materials may cause dust explosions under certain conditions.

Special protective equipment and precautions for fire-fighters; Dusts resulting fi·om grinding are very fine and under the specific conditions in which the dusts are mixed with grinding oil with low flash point, it is possible to become pyrophoric. If dusts under very flammable conditions are dispersed in the air, it is possible to explode. In such cases, look to your own safety first and then take necessary fire-fighting measures. In fighting a fire, wear a dust-proof respirator or respiratory protective equipment.

Section 6: Accidental release measures Personal precautions, protective equipment, and emergency procedures; It is recommended that someone who cleans grinding scraps or dusts should wear clothing and respiratory protective equipment to minimize exposure. Dispose of dusts as industrial wastes and prevent release in water systems.

Methods and materials for containment and cleaning up; Cemented Carbide, Cemented Carbide Tool, Coated Cemented Carbide, and Coated Cemented Carbide Tool DUET Industrial Co., LTD. ~ Japan PageS of 11 Date of issue: 22"d June, 2015 If there are dusts from resulting from grinding and mechanical processing, isolate the area and remove with a cleaner equipped with a filter which can take up fine particles very efficiently. If appropriate removing methods are not available, sweep with water sprayers or wet mops.

Section 7: Handling and storage Precautions for safe handling Protective measures: Install appropriate equipment and wear suitable protective apparatus described in Section 8: Exposure controls/personal protection. Cemented Carbide is stable and has little effect on health. However prolonged or repeated exposure to the dust or grinding liquid containing cobalt or nickel may cause rough skin. As the specific gravity of Cemented Carbide is great, handle as a large-sized product or in the case of large quantity, as a heavy product. In grinding or mechanical processes, provide local exhaust ventilation and use personal protective equipment to minimize exposure to human body, due to the possibilities of the disperse of dust containing cobalt or nickel. Do the same way for grinding sludge. Regular physical checkups are recommended.

Advice on general occupational hygiene: Wash hands thoroughly before eating, drinking, and smoking. Do not eat, drink, and smoke in the handling area.

Conditions for safe storage! including any incompatibilities Technical measures: In the storage area, install adequate light and ventilation systems to handle hazardous materials.

Incompatible materials: Oxidizing substances ( peroxide, Nitric acid, , dioxide, etc.) Other substances ( nitrate, Acetylene, etc.)

Conditions for safe storage: Avoid sudden changes of temperature and high humidity for storage.

Packing material: Use a sealed container without damage or leakage.

Section 8: Exposure controls/personal protection Occupational Exposure Limits; 3 OSHA PEL-TWA O.I mg/m (Cobalt and inorganic compounds, as Co) (metal dust and fume) I mg/m3 (Nickel elemental) I mg/m3 (Chromium metal) ACGIH TLV-TWA(2014) 0.02 mg/m3 (Cobalt and inorganic compounds, as Co) I .5 mg/m3 (Nickel elemental) (inhalable fi·action) Cemented Carbide, Cemented Carbide Tool, Coated Cemented Carbide, and Coated Cemented Carbide Tool DUET Industrial Co., lTD. ~ Japan Pagc6 of II Date of issue: 22nd June, 2015 0.5 mg/m3 (Chromium metal)

Appropriate engineering controls; Provide local exhaust ventilation so that dusts in the air may not exceed the exposure limits. If it is possible that a concentration may exceed the permissible level, use a dust-proofrespirator or respiratmy protection.

Individual protection measures, such as personal protective equipment; Respiratory protection Dust-proofrespirators and respiratory protective equipment are recommended. Hand protection Protective gloves for dusts are recommended. Eye protection Protective glasses for dusts are recommended. Skin and body protection Avoid direct skin contact. Clean up deposited dust on clothing, rags, etc. by washing or absorbing with suitable filters but not by whisking off. Change the contaminated clothing into clean one. Local exhaust ventilation is recommended.

Section 9: Physical and chemical properties

Appearance Dark gray solid (physical state, color, etc.) Odor Odorless Odor threshold No information pH No information Melting point/freezing point No information Initial boiling point and boiling range No information Flash point No information Evaporation rate No information Flammability (solid, gas) No information Upper/lower flammability or No information limits Vapor pressure No information Vapor density No information Relative density 11.0-15.5 Solubility (ies) Insoluble Partition coefficient: n-octanol/water No information Auto-ignition temperature No information Decomposition temperature No information Viscosity No information

Other information No information

Section 10: Stability and reactivity ----- Cemented Carbide, Cemented Carbide Tool, Coated Cemented Carbide, and Coated Cemented Carbide Tool DUET Industrial Co., LTD. - Japan Page7 of 11 Date of issue: 22"d June, 2015 Reactivity Can be a possible cause to produce harmful gases in contact with chemical such as acid.

Chemical stability This product is in solid form and therefore chemically stable as it is and not explosive, flammable, combustible, pyrophoric, water-reactive, and oxidizing in normal environment.

Possibility of hazardous reactions Not applicable

Conditions to avoid Contact with the following 'Incompatible Materials'.

Incompatible materials Oxidizing substances (Hydrogen peroxide, Nitric acid, Ammonium nitrate, Nitrogen dioxide, etc.) Other substances (Hydrazine nitrate, Acetylene, etc.)

Hazardous decomposition products None

Section II: Toxicological information Symptoms related to the physical, chemical and toxicological characteristics; Information on product: No information

Information on ingredients: Tungsten carbide Carcinogenicity: The classifications of"2A" in !ARC (!ARC (2006)).

Cobalt

Acute toxicity (oral): Rat LD 50 ~ 6,171 mg/kg Respiratory sensitization: The classification by the Japan Society for Occupational Health and the Japanese Society of Occupational Allergy (Respiratory Tract Sensitizing Substance). Skin sensitization: The classification by the Japan Society for Occupational Health and the Japanese Society of Occupational Allergy (Skin Sensitizing Substance). Carcinogenicity: Due to the fact that the substance is classified as Category A3 (as cobalt and inorganic compounds) by ACGIH (2001), Group 2B (cobalt and cobalt compounds) by !ARC (1991) and Category I (as cobalt and cobalt compounds) by the Japan Society for Occupational Health. Reproductive toxicity: Histological changes of testes and reduction in survival rates of offspring are observed, though no descriptions are available regarding the general conditions of parental animals. Cemented Carbide, Cemented Carbide Tool, Coated Cemented Carbide, and Coated Cemented Carbide Tool DUET Industrial Co., lTD. ~ Japan Page& of II Date of issue: 22 11d June, 2015 Specific target organ toxicity single The human evidence including respirat01y irritation. exposure: Specific target organ toxicity repeated The human evidence including respiratory irritation, stridor, exposure: asthma, pneumonia, fibrosis, myocardiosis, functional effects on the cardiac vehicles, cardiac hypertrophy, cardiac failure due to occupational exposure to cobalt. The effects are observed in the respiratmy organs and heart, while those on the hemi are considered secondary effects and hence are not taken into account.

Nickel

Acute toxicity (oral): Rat LD 50 > 9,000 mg/kg Respiratory sensitization: The substance is classified into Category 2 for respiratory tract sensitizer in Japan Society For Occupational Health (JSOH) (Recommendations for allowable concentrations (2008)), and as respiratory tract sensitizer by Japanese Society of Occupational and Environmental allergy (2004) and DFG (MAK/BATNo. 43 (2007)). Skin sensitization: There are human case reports of eczema, contact dennatitis and positive results in patch tests. In addition, the substance is classified into Category I for skin sensitizer by Japan Society For Occupational Health (JSOH) (Recommendations for allowable concentrations (2008)), and as a skin sensitizer by Japanese Society of Occupational and Environmental allergy (2004) and DFG (2007). Carcinogenicity: The classifications of "2B" in IARC (!ARC (1990)), "R" in NTP (NTP (2005)) and "Carcinogenicity. Category 3; R40" in EU classification (EU (2007)). Specific target organ toxicity single In an inhalation (single intratracheal exposure) test in male exposure: rats, cytotoxicity in the alveolar epithelial cells was observed at 0.5 mg and higher concentrations. Inhalation exposure of humans induced alveolar wall damage and edema in alveolar spaces in the lung and marked tubular necrosis in the kidney. Specific target organ toxicity repeated It was reported that a high risk of mo11ality fi·om respiratory exposure: disease is found among workers exposed occupationally to nickel oxides and metal nickel at concentrations of 0.04 mg/m3 and higher. In addition, rhinitis, sinusitis, nasal septal perforations and dysplasia of the nasal mucosa were repmted in nickel refinery and nickel plating workers.

Chromium Serious eye damage/irritation: Powdered might cause irritation (mechanical). Respiratory sensitization: This is listed by the Japanese Occupational and Environmental Allergology Society. In addition, the Japan Society for Occupational Health classified this as a substance considered to probably have sensitization to humans. Cemented Carbide. Cemented Carbide Too!, Coated Cemented Carbide, and Coated Cemented Carbide Tool DJJET Industrial Co., t:rD. - Japan Pagc9 of 11 Date of issue: 22nd June. 2015 Skin sensitization: No sensitization is found in the forms of chromium metal, chromium alloy and chrome plating. The description that this may dissolve with moisture to cause skin sensitization exposed by chromium ion. In addition, the Japan Society for Occupational Health classified this as a substance considered to clearly have sensitization to humans. Germ cell mutagenicity: The positive result of the in vivo mutagenicity test using somatic cells (the chromosome aberration test using rat peripheral blood lymphocytes). Specific target organ toxicity single This substance may cause metal fume fever and airway exposure: irritation in humans.

Delayed and immediate effects and also chronic effects from short- and long-term exposure; May cause an allergic skin reaction May cause allergy or asthma symptoms or breathing difficulties if inhaled May cause respirat01y irritation Suspected of causing genetic defects Suspected of causing cancer Suspected of damaging fertility or the unborn child Causes damage to respiratory system, kidney May causes damage to systemic toxicity Causes damage to respirat01y system through prolonged or repeated exposure

Numerical measures of toxicity (such as acute toxicity estimates); Not applicable

Whether the chemical is listed in the NTP Report on Carcinogens or has been found to be a potential carcinogen in the !ARC Monographs, or by OSHA; !ARC: Group 2A(Cobalt metal with tungsten carbide), 2B(Cobalt and cobalt compounds, Nickel, metallic and alloys) NTP Report: Group R(Nickel, Metallic) OSHA: Not listed

Section 12: Ecological information Ecotoxicity: Information on product: No information

Information on ingredients: Cobalt Aquatic acute toxicity: No information

Aquatic chronic toxicity: Although L(E)C50 <~ 100 mg/L data exist, since it is metal and the behaviour in the water is unknown, it is classified into Category 4.

Nickel Aquatic acute toxicity: No information Cemented Carbide, Cemented Carbide Tool. Coated Cemented Carbide, and Coated Cemented Carbide Tool DIJET Industrial Co., CI'D. ~ Japan PageiO of II Date of' issue: 22~d June, 2015 Aquatic chronic toxicity: Classified into Category 4 since it is a metal and its behaviour

in water is unknown though the data (L(E)C5o <~ I 00 mg/L) are available.

Persistence and degradability: Information on product: No information

Information on ingredients: No infonnation

Bioaccumulative potential: Information on product: No information

Information on ingredients: No information

Mobility in soil: Information on product: Although dusts in the air are mobile, they are likely to be deposited due to the great specific gravity.

Information on ingredients: No infonnation

Other adverse effects: No information

Section 13: Disposal considerations Waste treatment methods The main ingredients such as tungsten carbide, cobalt, nickel are rare metal. It is a desirable to collect and recycle them. Dispose of waste in accordance with applicable local, regional and international regulations and standards. When disposing, consult to a ce11ificated waste trader or local offices if they deal with the waste. Used container should be recycled after cleaning or dispose of in compliance with related laws and local regulations. Contents should be removed completely when dispose of empty containers.

Section 14: Transport information UN number Not applicable UN proper shipping name Not applicable Transport hazard class(es) Not applicable Packing group Not applicable Environmental hazards Not applicable Transport in bulk according to Annex II of MARPOL 73/78 and IBC code Not applicable

Special precautions for user When transporting, avoid direct sunlight. Confirm no leakage to containers. When loading, prevent containers from falling, dropping off or damaging. Take preventive measures of collapse. Cemented Carbide, Cemented Carbide Tool, Coated Cemented Carbide, and Coated Cemented Carbide Tool DUET Industrial Co., lTD. - Japan Pagett of II Dale of issue: 22nd June, 2015

Section 15: Regulatory information OSHA: Hazardous chemical TSCA inventory: All ingredients in this product are listed on the TSCA Inventory. TSCA SNUR: Not listed SARA Title Ill: Section 302 (Extremely Hazardous Substances): Not listed Section 304 (Hazardous Substances): Not listed Section 313 (TR! Chemicals): Cobalt, nickel, chromium Clean Air Act: This product does not contain any substances regulated as hazardous air pollutants under Section 112 of the Clean Air Act. Clean Water Act: Nickel and chromium are regulated as pollutants pursuant to the Clean Water Act.

Section 16: Other information, including date of preparation or last revision Update history: Date of issue: 22"' June, 2015

References: Information ofDIJET lndusn·ial Co., LTD.- Japan NITE GHS classification results (2015). ACGIH, American Conference of Governmental Industrial Hygienists (2014) TLVs and BE!s.

(Disclaimer} This SDS has been prepared based on the best available information however, it may not be sufficient in some cases. It is user's responsibility to modify or update any contents in this SDS regarding information on hazardous properties and/or instruction for safe handling of the product when they become available. Precautionary measures in this SDS arc only applicable for normal handling conditions and it is necessary to take appropriate additional measures to ensure safe handling which depend on your specific usc conditions or situations.