Date of board meeting

(Incorporated in the Cayman Islands with limited liability) (Stock Code: 8619) DATE OF BOARD MEETING The board of directors (the “Board”) of NIU Holdings Ltd. (the “Company”) announces that a meeting of the Board will be held on Tuesday, 30 June 2026 at Room 804, 8/F., Inter-continental Plaza, 94 Granville Road, Tsim Sha Tsui, Kowloon, Hong Kong for the purposes of, among other matters, considerin