Sustainability-Responsible Mineral Management-LONGi

Responsible Mineral Management

LONGi has released the "LONGi Responsible Mineral Procurement Policy," committing not to procure or use minerals that fund armed groups in conflict-affected and high-risk areas. This policy applies to the mineral supply chain of LONGi, its subsidiaries, and controlled companies, covering minerals such as tungsten, tin, tantalum, gold, cobalt, silicon, and others. LONGi also requires all suppliers and their upstream supply chains to jointly implement due diligence management, with this requirement incorporated into supplier contracts or agreements. As of the end of the reporting period, LONGi's usage of conflict minerals was zero, revenue from products containing conflict minerals was zero, and the supply chain did not involve other minerals from high-risk areas.

LONGi strictly adheres to the OECD’s Five-Step Framework for Supply Chain Due Diligence, extending responsible mineral management to the supply chain of all production materials across the entire group. In 2025, we revised the "Responsible Mineral Management Measures for the Supply Chain," further clarifying responsible procurement requirements for minerals such as silicon. Suppliers are also required to implement traceability management for their upstream supply chains in accordance with the OECD Due Diligence Guidance, ensuring that the entire supply chain does not involve conflict minerals or minerals from high-risk areas, while continuously improving risk prevention and control mechanisms.

Based on the updated management measures, LONGi conducted comprehensive due diligence on relevant supply chains, achieving a 100% completion rate. As of now, all six upstream smelters of the group’s 12 tin-containing material suppliers have passed RMAP certification, and the origin of all silicon mines used does not involve conflict-affected or high-risk areas.

Additionally, LONGi maintains open complaint and reporting channels, allowing external stakeholders to raise issues or concerns related to responsible minerals through various channels, including telephone, the "LONGi Qingfeng" WeChat mini program, the group audit email, and the SRM portal website.

Risk Level	Contents	Measures
Low risk	Upstream 3TG smelters or refiners comply with RMAP certification, and silicon mines' origin or transit locations do not involve conflict-affected or high-risk areas, or have obtained a qualified certification report.	Conduct due diligence regularly each year and maintain ongoing monitoring.
Medium risk	Upstream smelters or refiners have not obtained RMAP certification or other recognized qualification reports, but the origin or transit regions are not involved in conflict-affected minerals or high-risk areas.	Continue the collaboration and urge the upstream smelters or refiners of suppliers to obtain RMAP certification within six months.
High risk	Upstream 3TG smelters or refiners are not compliant with RMAP certification, and the mineral's origin or transit countries are either linked to conflict-affected or high-risk areas or cannot be identified.	Cease collaboration and conduct a responsible minerals audit, achieving RMAP certification or an equivalent standard within 6 months. If not achieved, initiate supplier replacement or termination procedures.

Risk Level

Contents

Measures

Low risk

Upstream 3TG smelters or refiners comply with RMAP certification, and silicon mines' origin or transit locations do not involve conflict-affected or high-risk areas, or have obtained a qualified certification report.

Conduct due diligence regularly each year and maintain ongoing monitoring.

Medium risk

Upstream smelters or refiners have not obtained RMAP certification or other recognized qualification reports, but the origin or transit regions are not involved in conflict-affected minerals or high-risk areas.

Continue the collaboration and urge the upstream smelters or refiners of suppliers to obtain RMAP certification within six months.

High risk

Upstream 3TG smelters or refiners are not compliant with RMAP certification, and the mineral's origin or transit countries are either linked to conflict-affected or high-risk areas or cannot be identified.

Cease collaboration and conduct a responsible minerals audit, achieving RMAP certification or an equivalent standard within 6 months. If not achieved, initiate supplier replacement or termination procedures.

Guidelines for Responsible Mineral Management Practices

1. Supplier Statement and LONGi Supplier Code of Conduct requirements:

Suppliers must ensure that neither they nor their suppliers/partners purchase or use products or raw materials produced in violation of labor protection principles. They must also guarantee that the products and raw materials provided to LONGi do not contain any components derived from unethical procurement or production. Suppliers must ensure that both they and their suppliers/partners comply with local labor protection and environmental protection laws and regulations, as well as relevant internationally recognized principles or standards. They must adhere to requirements consistent with this Code of Conduct and, through internal policies, identify, prevent, mitigate, terminate, or minimize adverse impacts on labor protection and the environment.

If suppliers identify any red flags in the supply chain that indicate the above commitments may no longer be valid, they must immediately notify LONGi. At the same time, suppliers must promptly conduct further investigations to verify whether the goods delivered to LONGi may contain ingredients derived from unethical procurement or production, and provide reasonable proof to LONGi as required.

Suppliers must comply with laws and regulations related to conflict minerals and establish clear policies or robust procedures to ensure they do not purchase, use, or sell tantalum, tin, tungsten, gold (3TG), silicon, or other minerals from conflict-affected or high-risk areas (CAHRAs). Suppliers should refer to relevant management guidelines, such as the OECD Due Diligence Guidance for Responsible Supply Chains of Minerals from Conflict-Affected and High-Risk Areas and the Chinese Due Diligence Guidelines for Responsible Mineral Supply Chains, to conduct due diligence on their mineral supply chains containing 3TG and silicon. In addition, suppliers must provide due diligence results or implement supply chain control measures as required by LONGi to ensure the absence of "conflict minerals" and other high-risk minerals.

2. Supplier Responsibility Requirements:

①In accordance with the OECD Due Diligence Five-Step Framework, establish and improve the supply chain due diligence management system. Refine the mineral risk management process with reference to the requirements of Annex II of the OECD Due Diligence Guidance, and set relevant goals and indicators for responsible mineral management while regularly monitoring their performance. Direct suppliers are required to complete the Conflict Minerals Reporting Template (CMRT) issued by the Responsible Minerals Initiative (RMI) for identifying upstream smelters/refiners and their certification status to ensure no involvement in conflict minerals. Suppliers in the silicon value chain must trace the origin of silicon mines, as well as the production locations and transportation routes of industrial silicon and silicon powder, to ensure they do not originate from conflict-affected or high-risk areas.

②Suppliers shall commit to neither using nor selling any products containing minerals from conflict-affected or high-risk areas. This commitment must be conveyed in written form, such as through a supplier code of conduct, agreements, or contracts, to upstream supply chain participants, ensuring that all parties are fully aware of and adhere to LONGi's management requirements. These requirements should be integrated into the entire procurement process to continuously enhance the mineral risk prevention and control system.

③For suppliers identified as high-risk for minerals, LONGi will suspend cooperation. Such suppliers must conduct responsible mineral audits independently, including but not limited to on-site inspections and independent third-party reviews, and ensure their upstream smelters or refiners achieve RMAP certification or an equivalent standard within six months. If corrective actions are not completed within the required time frame, LONGi will initiate supplier substitution or termination procedures.

④Suppliers are required to establish a robust ESG information disclosure mechanism and regularly publish results related to responsible mineral management. This can be done through their official website or ESG reports, showcasing their responsible mineral management system, risk management performance, and mineral sourcing information.