Suppliers & Contractors

Responsible Minerals Sourcing Policy

Revised July 2026

Purpose and Scope

Wolfspeed is committed to the responsible sourcing of minerals used in our products and supply chain. This policy applies to Wolfspeed operations and to suppliers providing materials, components, products, or services that may contain minerals within the scope of Wolfspeed’s responsible sourcing due diligence activities.

Our Responsible Minerals Program addresses tin, tantalum, tungsten, and gold (3TG) and recognizes that other minerals may present similar risks related to human rights, environmental protection, and responsible sourcing. As part of our commitment, the program may also include other minerals of concern based on evolving regulatory requirements, industry standards and guidance, customer expectations, and Wolfspeed’s risk-based assessment of responsible sourcing priorities.

Wolfspeed recognizes that mineral extraction, processing, transport, and trade may contribute to human rights abuses, child or forced labor, unsafe working conditions, environmental harm, corruption, or the financing of armed groups when not responsibly managed.

Our Standards

Wolfspeed conducts responsible minerals due diligence consistent with the OECD Due Diligence Guidance for Responsible Supply Chains of Minerals from Conflict-Affected and High-Risk Areas (OECD Guidance) and supports internationally recognized responsible sourcing practices.

Our approach includes maintaining appropriate management systems; identifying and assessing supply chain risks; engaging suppliers; evaluating smelters, refiners, processors, and other relevant upstream sources; mitigating identified risks; supporting applicable reporting obligations; and continuously improving our Responsible Minerals Program.

Wolfspeed participates in industry initiatives, including the Responsible Minerals Initiative (RMI), and may use recognized third-party responsible sourcing programs to support supply chain due diligence and traceability.

Supplier Expectations

Wolfspeed expects suppliers to comply with the Wolfspeed Supplier Code of Conduct, this policy, applicable laws and regulations, and relevant responsible sourcing requirements.

Suppliers are expected to:

Maintain responsible sourcing policies and risk-based due diligence processes appropriate to their operations and supply chains;

Identify applicable smelters, refiners, processors, and other relevant upstream sources;

Source, where applicable, from recycled or scrap sources or from smelters and refiners validated or actively progressing toward validation through recognized third-party responsible sourcing programs;

Provide complete, accurate, and timely industry-standard responsible minerals reporting templates, including the Conflict Minerals Reporting Template (CMRT), Extended Minerals Reporting Template (EMRT), Additional Minerals Reporting Template (AMRT), or other applicable reporting tools, as requested by Wolfspeed, together with supporting due diligence information where necessary;

Communicate responsible sourcing expectations throughout their own supply chains;

Promptly address identified risks through appropriate corrective action and risk mitigation measures; and

Cooperate with Wolfspeed in inquiries, remediation efforts, and alternative sourcing where necessary.

Prospective suppliers may also be required to provide applicable responsible minerals reporting templates and supporting due diligence information as part of Wolfspeed's supplier evaluation process.

Restricted and High-Risk Sources

Wolfspeed may determine that certain suppliers, smelters, refiners, processors, or other upstream entities present unacceptable sourcing risk.

This may include entities that are:

Subject to applicable sanctions, trade restrictions, or import prohibitions;

Identified on government forced-labor or restricted-entity lists, including, where applicable, the U.S. Uyghur Forced Labor Prevention Act (UFLPA) Entity List; or

Determined through Wolfspeed’s risk assessment process to present unacceptable risks to human rights, responsible sourcing objectives, legal compliance, or supply chain integrity.

Wolfspeed may require enhanced due diligence, corrective action, or alternative sourcing where risks cannot be adequately mitigated. Supplier responsiveness and commitment to responsible sourcing may be considered in sourcing decisions, and Wolfspeed reserves the right to suspend new business or discontinue a business relationship where appropriate.

Governance and Continuous Improvement

Wolfspeed maintains appropriate governance and cross-functional oversight of its Responsible Minerals Program and periodically reviews its policies and due diligence processes to support alignment with evolving legal requirements, internationally recognized standards, industry practices, and emerging sourcing risks.

Reporting Concerns

Employees, suppliers, business partners, and other stakeholders are encouraged to report concerns related to responsible mineral sourcing, human rights, environmental impacts, or ethical business conduct through Wolfspeed’s established ethics and compliance reporting channels.

Reports may be made confidentially and anonymously where permitted by law. Wolfspeed prohibits retaliation against individuals who raise concerns in good faith.

Ethics & Compliance Hotline

Phone: 800.453.3918
Web: https://www.mycompliancereport.com/MCR
Access ID: Wolf

Wolfspeed Compliance
Compliance@Wolfspeed.com

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