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 refers to internationally recognized standards, including the <OECD Due Diligence Guidance for Responsible Supply Chains of Minerals from Conflict-Affected and High-Risk Areas>, to establish a conflict minerals due diligence mechanism. USCXM obtains supplier information that meets conflict minerals requirements as a basis for supply chain source management. Suppliers were also required to refer the commonly used Conflict Minerals Reporting Template (CMRT). Dedicated USCXM personnel were assigned to verify the smelters/refiners declared by suppliers are certified by internationally independent third-party certification programs, to ensure the total exclusion of conflict minerals usage. If the supplier uses minerals sourced from smelters/refiners that are not certified by internationally independent third-party certification programs, USCXM will refuse to use the product and ask the supplier to propose an improvement plan within a time limit.

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.