Daxin Certified Public Accountants LLP (Special General Partnership)
Regarding the Shenzhen Stock Exchange's "Inquiry Letter Regarding the Application for Issuing Shares and Paying Cash to Purchase Assets and Raising Supporting Funds by Tianshui Huatian Technology Co., Ltd." Reply - Special Audit Opinion (Revised Draft)
Daxin Ref. [2026] No. 9-00009
Shenzhen Stock Exchange:
We acknowledge receipt of your "Inquiry Letter Regarding the Application for Issuing Shares and Paying Cash to Purchase Assets and Raising Supporting Funds by Tianshui Huatian Technology Co., Ltd." (Inquiry Letter [2026] No. 130007). Daxin Certified Public Accountants LLP (Special General Partnership) (hereinafter referred to as "we"), as the reporting accountant for Tianshui Huatian Technology Co., Ltd. (hereinafter referred to as "Huatian Technology" or "the Company"), has prudently audited the issues requiring accountant's explanation and hereby provides the following explanations.
(Unless otherwise specified, all amounts in this reply are in RMB. If the sum of individual items does not match the total, it is due to rounding.)
Inquiry Letter Question
Reply to Inquiry Letter Question
Revision to Reply to Inquiry Letter Question
Songti (Bold)
Songti
Kaiti (Bold)
Issue Three: Regarding the Operating Performance of the Underlying Assets
The application documents and public information show: (1) The main business of the underlying assets is the R&D, design, packaging, testing, and sales of high-performance power devices. The main products include self-branded products and packaging/testing products. The underlying assets adopt a "Fabless + OSAT" business model, and procurement mainly includes wafers, packaging and testing materials, and equipment. During the reporting period, the procurement cost of wafers accounted for 36.41%, 42.38%, and 42.71% of the total raw material procurement cost for the respective periods. The average unit price of wafer procurement was RMB 0.66/piece, RMB 0.55/piece, and RMB 0.56/piece. (2) During the reporting periods, the main business revenue of the underlying assets was RMB 109,799.73 million, RMB 132,727.34 million, and RMB 119,095.92 million, respectively. The revenue scale of self-branded products and packaging/testing products was
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