Metallus Inc.

Being ethical and responsible is a core value of the company. As such, we hold ourselves to the highest ethical standards and recognize that we are all responsible for the company culture and for the impact that our practices have on society as a whole. Each of our employees and directors is required to comply with the Metallus Inc. Code of Conduct, a code of business conduct and ethics adopted by the company. Our Code of Conduct sets forth policies covering a broad range of subjects, including antitrust and competition, corruption and bribery, conflicts of interest, inside information, accurate financial records, harassment, environmental, health and safety and intellectual property, among other matters, and requires strict adherence to laws and regulations applicable to the company’s business.

Any waiver of the Code of Conduct for executive officers or directors may be made only by the Board of Directors or its Nominating and Corporate Governance Committee and will be disclosed promptly in accordance with applicable laws and rules of the New York Stock Exchange. We intend to disclose any such waiver, or any amendment to our Code of Conduct, within four business days on our website at

. The Metallus Inc. Code of Conduct is reviewed periodically by the Nominating and Corporate Governance Committee and is available on our website at

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We also expect our suppliers, vendors and other supply chain partners to adhere to certain standards related to corporate integrity, fair and ethical business practices, responsible product sourcing and the safety and wellbeing of workers across our global supply chain. Accordingly, we have adopted a Supplier Code of Conduct, which is available on our website at

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