Power of Attorney for BeOne Medicines Ltd. Director

This filing details a Limited Power of Attorney granted by Elizabeth F. Mooney, a director of BeOne Medicines Ltd., to a group of individuals including Chan Henry Lee, Qing Nian, Jessica Evelyn Forleo, and Frank Collazo. The appointed attorneys-in-fact are authorized to execute and file various U.S. Securities and Exchange Commission (SEC) forms on behalf of Ms. Mooney, including Form 3, Form 4, Form 5, Schedule 13D, and related amendments. These forms pertain to the reporting of beneficial ownership of securities and changes therein, as required by Section 16 of the Securities Exchange Act of 1934. The power of attorney also grants the attorneys-in-fact the authority to take any necessary actions to facilitate the completion and timely filing of these documents with the SEC and other relevant authorities. The appointment remains in effect until Ms. Mooney is no longer obligated to file such forms, or until earlier revoked in writing. This document supersedes any previous powers of attorney and includes provisions for indemnification of the attorneys-in-fact and the Company against any claims arising from false information provided by Ms. Mooney.