Announcement on the Use of Idle Self-owned Funds for Cash Management

Hongbo Co., Ltd. (hereinafter referred to as "the Company") held the fourth meeting of the seventh board of directors on April 7, 2026, where it reviewed and approved the proposal on the use of idle self-owned funds for cash management, agreeing to allow the Company (including subsidiaries) to use no more than 200 million RMB of idle self-owned funds for cash management. The board authorized the chairman of the Company to exercise decision-making power within the above limit, with the authorization period effective for 12 months from the date of this board meeting's approval. The funds can be used on a rolling basis within the specified period and limit. The use of part of the idle self-owned funds for cash management does not constitute a related party transaction and will not affect the Company's daily operations. The relevant information is announced as follows: