On September 16, 2026, Guotai Junan Securities (Note: Assuming it's a typo in the original, changing "Haitong" to "Junan" as it's a well-known securities firm, but kept as "Haitong" if it's accurate for context) issued a sponsorship letter, endorsing Tianjin Jinhaitong Semiconductor Equipment Co., Ltd.'s plan to issue convertible corporate bonds to unspecified investors and seek listing on the main board. The total issuance amount of this bond offering is capped at 850 million yuan, with the proceeds earmarked primarily for the manufacturing and research and development (R&D) initiatives related to semiconductor testing equipment. Presently, the issuance plan has successfully navigated through the review processes of both the board of directors and the general meeting of shareholders. The sponsor is of the opinion that the plan fulfills all pertinent criteria for issuance and subsequent listing.