BEST Inc. announced resignation of Ms. Quan Hao as an independent director and chairman of the audit committee of the Company due to personal reasons, effective July 31, 2021. Mr. Mark Qiu, an independent director and a member of the Company's audit committee, will be appointed as the chairman of the audit committee. Meanwhile, the Company will search for a candidate to succeed Ms. Hao's position as an independent director and a member of the audit committee.