HESAI-W (02525) announced that the sponsor and overall coordinator (for themselves and on behalf of international underwriters) has fully exercised the over-allotment option described in the prospectus on September 16, 2025, involving a total of 2.9325 million offer shares, representing 15% of the total number of offer shares available for subscription under the global offering (after taking into account the full exercise of the offer size adjustment option, but before the exercise of any over-allotment option). The over-allotment shares will be issued and allotted by the company at HK$212.80 per offer share. The over-allotment shares will be used to cover over-allocations in the international offering. The Stock Exchange has approved the listing of and dealings in the over-allotment shares. The over-allotment shares are expected to commence trading on the Main Board of the Stock Exchange at 9:00 a.m. on September 19, 2025.