Company: OC
Filing Date: 2025-03-14
Form Type: DEF 14A
Source: 0001370946-25-000125
Chunk: 20

Company: Owens Corning
Filing Date: 2025-03-14
Form: DEF 14A
Chunk 20
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DUCT

#### CODE OF BUSINESS CONDUCT POLICY
All of our employees, including our CEO, Chief Financial Officer, and Controller, are required to abide by the Company’s Code of Business Conduct Policy to ensure that our business is conducted in a consistently legal and ethical manner. This policy forms the foundation of a comprehensive process that includes compliance with all corporate policies and procedures, an open relationship among colleagues that contributes to good business conduct and the high integrity level of our employees. Our policies and procedures cover all areas of professional conduct, including employment policies, conflicts of interest, intellectual property, and the protection of confidential information, as well as strict adherence to laws and regulations applicable to the conduct of our business. Employees are expected to report any conduct that they believe to be an actual or apparent violation of the Company’s Code of Business Conduct Policy. In addition, the Company maintains a reporting system with access available on an anonymous basis online, by email, or by telephone, and the Code of Business Conduct and reporting system are translated into multiple languages to ensure all our employees around the globe can understand it and report any violations in their primary languages.

ETHICS POLICY FOR CHIEF EXECUTIVE AND SENIOR FINANCIAL OFFICERS

The Company has adopted an Ethics Policy for Chief Executive and Senior Financial Officers that applies to our Chief Executive Officer, Chief Financial Officer, and Controller (“Senior Financial Officers”), which provides, among other things, that Senior Financial Officers must comply with all laws, rules, and regulations that govern the conduct of the Company’s business and that no Senior Financial Officer may participate in a transaction or otherwise act in a manner that creates or appears to create a conflict of interest unless the facts and circumstances are disclosed to and approved by the Governance and Nominating Committee or Audit Committee, as appropriate. Suspected violations of this policy also are expected to be reported through the anonymous reporting system described above.

The Sarbanes-Oxley Act of 2002 requires audit committees to have procedures to receive, retain, and treat complaints received regarding accounting, internal accounting controls, or auditing matters and to allow for the confidential and anonymous submission by employees of concerns regarding questionable accounting or auditing matters. We have adopted and comply with such procedures.

#### DIRECTORS’ CODE OF CONDUCT
Our directors are required to comply with a Directors’ Code of Conduct, which is intended to focus the Board and the individual directors on areas of ethical risk, help directors recognize and deal with ethical issues, provide mechanisms to report unethical

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