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Responsible Mineral Sourcing

Responsible Mineral Sourcing

Unimicron complies with the RBA Code of Conduct, and the Organization for Economic Co-operation and Development (OECD), and works together with customers promising not to use metals extracted from armed conflict areas, illegal mining, and mining in poor working environments. Meanwhile, we require our suppliers to fulfill their social and environmental responsibility and trace the sources of Conflict Minerals (3TG) such as gold (Au), tin (Sn), tantalum (Ta), and tungsten (W) contained in all products to ensure that these metals are not from Conflict regions. We have also required all of our suppliers to share this requirement with their upstream suppliers in order to eradicate such behavior with market mechanisms and brought out our influence on the supply chain by requesting smelters to be certified by the Minerals Assurance Process (RMAP), as to fulfill our commitments with practical actions.

All smelters and refineries of 3TGs used by Unimicron’s Taiwan Facilities have obtained the RMAP certification and meet the RBA requirements. The conflict minerals used in plants in Mainland China and QunHong Technology Inc. all meet the RBA Code of Conduct. In response to the Responsible Minerals Initiative (RMI) Standard, the mining management of the metal "cobalt" has been added to the scope of conflict minerals. Therefore, we actively promote and incorporate them into the training materials. In addition to requiring all suppliers of 3TGs raw materials (gold/tin/tantalum/tungsten) to comply with the RMAP certification requirement for smelters, at the same time, suppliers of raw materials that contain "cobalt" are required to participate in the RMAP certification plan. We also started to investigate mica, copper, nickel, zinc, etc. in accordance with RMI Standards (2021 version) and provided it to customers according to RMI in 2022.

The Process of Mineral Management

Distribution of Refineries and Smelters of 3TGs
(Unit: %)

Countries 2019 2020 2021 2022
Belgium 7 9 9 7
Bolivia 7 9 9 7
Brazil 7 9 9 7
China 14 18 18 13
Indonesia 36 18 18 27
Japan 7 9 9 13
Malaysia 7 9 9 7
Peru 7 9 9 7
Thailand 7 9 9 7
Taiwan na na na 7
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