Micromax FF. Long term inhalation (years) of dust from manganese oxides might cause adverse health effects. (See section 11).

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Product Safety Information 1. Identification of the Product and Supplier Product name: Product application: Address/Phone No.: Contact: Micromax FF Weight material in oilwell cement.

1 Product Safety Information 1. Identification of the Product and Supplier Product name: Product application: Address/Phone No.: Contact: Micromax FF Weight material in oilwell cement. Elkem AS, Silicon Materials P.O. Box 334 Skøyen N-0213 Oslo, Norway Telephone: Telefax: sds.esm@elkem.no REACH registration number: REACH and CLP helpdesk: Emergency Phone No.: REACH and CLP website: Hazards Identification Classification of the substance Hazard pictogram: Signal word: Hazard statements: Precautionary statements: The product does not meet the criteria for hazard classification according to Regulation (EC) No1272/2008 (CLP) and the UN Globally Harmonized System of Classification and Labelling of Chemicals (GHS, 6 th rev.). Long term inhalation (years) of dust from manganese oxides might cause adverse health effects. (See section 11). 3. Composition/Information on Ingredients IUPAC name: Synonyms: Trimanganese tetroxide Manganese tetraoxide, Trimanganese tetraoxide, Mn 3 O 4, manganomanganic oxide CAS No.: EINECS No.: COPYRIGHT ELKEM AS /PSI/ENG Page 1 of 5

4. First Aid Measures Inhalation: Skin contact: Eye contact: Ingestion: Irritation caused by dust: Fresh air. See a physician on persistent feeling of discomfort.

Fire Fighting Measures Extinguishing media: Not applicable. Depending on surrounding fire. The product is not combustible.

Released material should be collected in suitable containers. Contaminated material should be disposed of in accordance with applicable federal and local regulations. 7.

2 4. First Aid Measures Inhalation: Skin contact: Eye contact: Ingestion: Irritation caused by dust: Fresh air. See a physician on persistent feeling of discomfort. Wash skin with water and/or a mild detergent. Rinse eyes with water/saline solution. See a physician on persistent feeling of discomfort. Remove the person affected from dusty area. See inhalation. 5. Fire Fighting Measures Extinguishing media: Not applicable. Depending on surrounding fire. The product is not combustible. The product is formed under surplus of oxygen (O 2) and there is thus no inherent risk of dust explosion. 6. Accidental Release Measures Avoid handling that generates build up of dust. Released material should be collected in suitable containers. Contaminated material should be disposed of in accordance with applicable federal and local regulations. 7. Handling and Storage Handling: Avoid inhalation of dust. (See section 8). Storage: Keep away from hydrochloric acid (HCl). Keep dry. 8. Exposure Controls/Personal Protection A) Occupational exposure controls Eye protection, eye flushing facilities and protective gloves. Ensure good ventilation. Wear CE-marked respiratory protection according to EN 149 FFP 2S in areas of inadequate ventilation. Occupational Exposure Limits (ACGIH 1), 2016): ACGIH TLV 8hr TWA 15 minute STEL Notations ppm mg/m 3 ppm mg/m 3 Manganese [ ], elemental and inorganic compounds, as Mn (I) - - A (R) 1) American Conference of Governmental Industrial Hygienists I) inhalable fraction R) respirable fraction WHO (1980) has recommended a threshold limit value for respirable manganese particles of 0.3 mg/m 3. (EU) 2017/164 has established a fourth list of indicative occupational exposure limit values (IOEL) pursuant to Council directive 98/24/EC. The IOEL for inorganic manganese compounds is 0.2 mg/m 3 (inhalable fraction) and 0.05 mg/m 3 (respirable fraction), respectively. 206/PSI/ENG Page 2 of 5

3 B) Environmental exposure controls Target value and limit value for PM 10 and PM 2.5 (Directive 2008/50/EC): Averaging period Limit value By date PM 10 One day 50 μg/m 3 PM 10 Calendar year 40 μg/m 3 PM 2,5 Calendar year 25 μg/m 3 PM 2,5 Calendar year 20 μg/m 3 1 January 2020 Not to be exceeded more than 35 times a calendar year. 9. Physical and Chemical Properties Form: Powder with particle diameter m, of which 90 % has a particle diameter < 5 m. Dust forms agglomerates. Colour: Reddish brown. Odour: Odourless. Flash point: Not applicable Combustion temperature: Not applicable Explosion limit in air: Not applicable Melting Point ( C): Solubility (Water): Insoluble/slightly soluble. Solubility (Organic solvents): Insoluble/slightly soluble. Specific Gravity (water =1): 4.8 ph value: 7-10; 5 g product in 50 ml distilled water. 10. Stability and reactivity Conditions to avoid: Materials to avoid: Hazardous decomposition products: None. Micromax FF is a stable manganese oxide. Concentrated hydrochloric acid (HCl). Reacts violently with hydrogen peroxide (H 2O 2). Concentrated hydrochloric acid reacts with Micromax FF forming toxic chlorine gas (Cl 2 ). 11. Toxicological Information The product does not meet the criteria for hazard classification according to Regulation (EC) No 1272/2008 (CLP) and the UN Globally Harmonized System of Classification and Labelling of Chemicals (GHS, 6 th rev.). Acute effects: Inhalation: Skin contact: Eye contact: Ingestion: Dust may cause mechanical irritation of mucous membranes. Inhalation of high concentrations of Mn vapour or Mn oxide fumes (See section 8) can result in chemical pneumonia. Dust may cause mechanical irritation. Dust may cause mechanical irritation. Dust may cause mechanical irritation of mucous membranes. 206/PSI/ENG Page 3 of 5

4 Chronic effects: Manganese is an essential trace metal in all living organisms. Long-term inhalation (years) of Manganese oxides may cause chronic manganese intoxication (manganism) affecting the central nervous system (CNS), and lead to extensive disablement, that cannot be cured. Fumes/dust of MnO 2 (tetravalent manganese (Mn[IV])) is classified as harmful to health. Micromax FF contains divalent and trivalent manganese (Mn[II] and Mn[III]). Mn[IV] has not been detected in the product. 12. Ecological Information The product is not characterised as dangerous for the environment. MOBILITY: PERSISTENCE: BIOACCUMULATION: ECOTOXICITY: The product is not mobile under normal environmental conditions. Not relevant for inorganic substances. Not relevant. The product does not meet the classification criteria for ecotoxicological endpoints in accordance with Regulation (EC) 1272/2008 (CLP) and the UN Globally Harmonized System of Classification and Labelling of Chemicals (GHS, 6 th rev.). Water Hazard Class Germany: Kenn-Nr. 3409: NWG (non-hazardous to water) 13. Disposal Considerations The product should be recovered for recycling if possible. This material is not classified as hazardous waste according to Commission Decisions 2000/532/EC and 2001/118/EC. Prior to disposal of large quantities of this material advice should be sought from the relevant Waste Regulation Authority. 14. Transport Information UN IMDG/IMO ADR/RID ICAO/IATA Not regulated 15. Regulatory Information A chemical safety assessment (CSA) has been carried out for the substance in accordance with Regulation (EC) 1907/2006 (REACH). The text of this Product Safety Information is prepared in compliance with: - Regulation (EC) No 1907/2006 of the European Parliament and of the Council of 18 December 2006 concerning the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH). - Regulation (EC) No 1272/2008 of the European Parliament and of the Council of 16 December 2008 on classification, labelling and packaging of substances and mixtures (CLP). - UN Globally Harmonized System of Classification and Labelling of Chemicals (GHS, 6 th rev.). 206/PSI/ENG Page 4 of 5

5 16. Other Information According to Chapter of the UN Globally Harmonized System of Classification and Labelling of Chemicals (GHS), Article 58 (2)(a), and Article 59(2)(b) of (EC) No 1272/2008 (CLP), which amends REACH article 31(1), safety data sheets (SDS) are only required for substances and mixtures that meet the harmonised criteria for physical, health or environmental hazards. Since this product does not meet these criteria, an SDS according to (EU) 2015/830 is not issued. In order to communicate relevant HSE-(health, safety and environmental-) information, this product safety information (PSI) is provided instead. In accordance with REACH article 31(5), safety data sheets shall be supplied in an official language of the Member State(s) where the substance or mixture is placed on the market. This obligation, however, only applies for hazard-classified products which require a formal SDS. Since this product is not hazard-classified, the product safety information (PSI) is, in accordance with current regulation, provided in English language only. REACH article 31(7) requires relevant exposure scenarios from the Chemical Safety Report (CSR) to be annexed to the SDS. However, according to REACH Annex I, section 0. (Introduction), subsection 0.6. no 4 and 5, exposure scenarios are only required for hazard-classified substances or mixtures. Since this product is not hazard-classified according to CLP, there is no requirement for exposure scenarios. Literature references are available upon request. Micromax is a registered trademark owned by Elkem AS. Changes from revision 01 to 02: New corporate address. Paragraph 2 in section 16. Updated ACGIH values. Changes from revision 02 to 03: generic address inserted, links updated, removed reference to DSD directive, removed legal disclaimer, inserted reference to (EU) 2015/830, GHS, and (EU) 2017/ /PSI/ENG Page 5 of 5

Product Safety Information

Product Safety Information 1. Identification of the Product and Supplier Product name: Micromax Product application: Address/Phone No.: Contact: Weight material in oilwell cement and drilling fluids. Elkem