Hesai Group will convene its Board of Directors on 18 August 2026 (Beijing/Hong Kong time) to review and approve the unaudited financial results for the second quarter and first half of 2026.

Key agenda items: • Approval and publication of the Company’s results for the three months ended 30 June 2026. • Approval and publication of the unaudited consolidated interim results for the six months ended 30 June 2026.

An earnings conference call is scheduled for 8:00 AM U.S. Eastern Time / 8:00 PM Beijing/Hong Kong Time on the same day. Investors intending to participate by phone must complete pre-registration via the designated link and dial in five minutes before the start time. A live webcast—and subsequent replay—will be accessible through the investor relations section of the Company’s website.

The announcement was authorized by Dr. Yifan Li, Chairman, Executive Director and Chief Executive Officer, on behalf of the Board on 27 July 2026. The Board currently consists of four executive directors—Dr. Yifan Li, Dr. Kai Sun, Mr. Shaoqing Xiang and Ms. Cailian Yang—and three independent non-executive directors: Ms. Yi Zhang, Mr. Jia Ren and Dr. Hui Wang.