LBMA Due Diligence Checklist — Mined Material ("Updated April 2024")

<!-- page 1 --> Updated April 2024 Page 1 of 2 ## LBMA DUE DILIGENCE CHECKLIST ## Mined Material KYC Documents ☐ “LBMA KYC Questionnaire – Mined Material” or any equivalent toolkit document used for Refiner consideration Please note that some of the requirements below are already included in the LBMA Questionnaire ☐ Identify the counterparty - [included in the LBMA Questionnaire, section 1] • Name • Address • Country of incorporation ☐ Evidence of incorporation using reliable independent source documents, data or information, such as: • Business register extract • Certificate of Incorporation • Certificate of good standing • Articles of associations • Extract from reliable private database/from regulatory body database ☐ Identify the beneficial owner(s) – [included in the LBMA Questionnaire, section 3] ☐ ID of ultimate beneficial owners ☐ ID of authorized signatories ☐ Screening (through reliable database such as World-Check) on: • Counterparty • Ultimate Beneficial owner(s), Other (based on risk classification) ☐ Copy of mining license(s) ☐ Copy of export license(s) if applicable ☐ Corroborative documentation based on the risk classification such as for example: • Internet research • Annual report • Corporate social responsibility report • Group chart • References • Licenses • Certifications • Environmental Impact Assessment • Counterparty’s policies and procedures, if applicable and relevant: o AML o Anti-bribery and corruption (incl. payment to government) o Human rights o Environmental o Health & Safety o Labour o Community engagement o Code of conduct o Grievance / Whistleblowing • Mining site and processing plant pictures ☐ Does the company have an environmental incident plan (incl. tailings dam failure)?

<!-- page 2 --> Updated April 2024 Page 2 of 2 ☐ Identify if the transportation route from the mine to the refinery transit is through a Conflict- Affected area? ☐ Risk assessment from the Refiner’s perspective Additional requirements for high risk supply chain ☐ Report visit on on-site visit conducted within 6 months of the business relationship commencing, at the latest – [LBMA on site visit form may be used] ☐ Screening on all companies located in conflict related areas, in the supply chain from the mine to the refinery ☐ Self-declaration of taxes and royalties’ compliance, as applicable