Conflict Minerals Management

At USCXM, we enforce conflict minerals management according to the Disclosures Relating to Conflict Minerals prescribed in Rule 13p-1 of the U.S. Securities and Exchange Act of 1934 of the US Securities and Exchange Commission (SEC). During new supplier selection, USCXM requires new suppliers to introduce assessment systems and to present sourcing of minerals from conflict regions. Existing suppliers are also required to actively investigate and verify specified materials (gold, tantalum, tin, and tungsten, cobalt, and mica), sign agreements prohibiting the use of conflict minerals, or provide a declaration thereof. USCXM also exercises due diligence when implementing our investigations, and annual supplier audits were carried out to check whether upstream smelters / refiners of the suppliers utilize conflict minerals. Lot traceability for the supply chain is in place to ensure that no conflict minerals have been used. USCXM is also an active participant of global advocacy groups such as Responsible Minerals Initiative (RMI) of RBA. Information on suppliers that meet conflict mineral requirements was acquired from the Responsible Minerals Assurance Process(RMAP) as a basis for supply chain and source management. Suppliers were also required to refer to the latest Conflict Minerals Reporting Template(CMRT) of RBA to provide information related to conflict minerals. Dedicated USCXM personnel were assigned to verify a supplier's compliance to RBA standards for ensuring the total exclusion of conflict minerals usage. If the supplier does not use minerals from qualified smelters in the RMAP list, USCXM will refuse to use the product and ask the supplier to propose an improvement plan within a time limit.

Employee Code of Conduct

The employee code of conduct about United Semi provide the following channels to report:

In order to discover, discourage and prevent major misconduct, and to encourage open communication from employees and third parties, any violation of this code of conduct should be reported. people can report the incident through any of the following channels :

⚫ Division in charge of handling reports of violation in the Code of Conduct or engagement in fraud

Responsible divisions are ADT Level 1 Manager,HR Level 1 Manager,Legal and Compliance Level 1 Manager, and Audit Committee. Issues should be reported directly to a manager in HR or any other appropriate department/division. Once the manager receives the report, they will immediately notify the ADT Division Director and USCXM local highest ADT manager .

⚫Approach

Send an email report to the email address whistleblower@umc.com

Hot Lines : 86-0592-7687888 ext 51425

⚫Non-Retaliation

For the person reporting a violation of the Code of Conduct or engagement in fraudulence as well as any other related employee involved in all subsequent investigations of the violation, the company will provide safeguard measures ensuring them against any unfair retaliation or treatment.