Tanyue Advanced made an announcement stating that on August 20, 2025, its H shares are set to be listed on the Main Board of the Hong Kong Stock Exchange. Subsequently, on September 14, 2025, the over - allotment option was fully exercised. This led to an expansion in the company's total share capital. Throughout this process, while the quantity of shares held by Hubble Investment in the company stayed the same, its shareholding percentage underwent passive dilution as a result of the growth in share capital.

From October 28 to December 16, 2025, Hubble Investment divested a portion of its shares in the company via centralized bidding transactions. Following this alteration in equity, Hubble Investment now possesses 24.2309 million shares of the company. These shares represent 5.00% of the company's total share capital (calculated based on the share capital after the issuance of H shares), thereby reaching the 5% threshold for equity change.