Officer and Director Stock Ownership Filing

This filing is related to ACHIEVE LIFE SCIENCES, INC. and its officer and director, Andrew D. Goldberg. The filing indicates that Mr. Goldberg has appointed Sandra Thomson as his attorney-in-fact to execute and file required SEC forms, including Forms 3, 4, and 5, related to his stock ownership and transactions in the Company's securities. This power of attorney is granted to ensure timely and accurate compliance with Section 16 of the Securities Exchange Act of 1934. The filing also includes a Limited Power of Attorney document detailing the scope of Ms. Thomson's authority and responsibilities.