Avantor Inc

We have a written Code of Ethics and Conduct that applies to all of the directors, officers and employees, including our President and Chief Executive Officer, Chief Financial Officer, Chief Accounting Officer and other senior executive officers. Our Code of Ethics and Conduct sets forth policies and expectations on a number of topics, including conflicts of interest, compliance with laws, use of company assets, and our business practices. A current copy of the Code of Ethics and Conduct is posted on our website at www.avantorsciences.com under “Investors: Governance.”

Were we to amend or waive any provision of our Code of Ethics and Conduct that applies to our principal executive officer, principal financial officer, principal accounting officer or any person performing similar functions, we intend to satisfy our disclosure obligations, if any, with respect to any such waiver or amendment by posting such information on our website at www.avantorsciences.com rather than by filing a Form 8-K. In the case of a waiver for an executive officer or a director, the required disclosure will also be made available on our website.