Announcement on Signing Letter of Intent for Equity Acquisition

Securities Code: 301626 Securities Abbreviation: Suzhou Tianmai Announcement No.: 2026-037

Suzhou Tianmai Thermal Technology Co., Ltd.

Announcement on Signing Letter of Intent for Equity Acquisition

The Company and the entire Board of Directors guarantee that the information disclosed is true, accurate, and complete, and contains no false records, misleading statements, or significant omissions.

Special Reminder:

1. Suzhou Tianmai Thermal Technology Co., Ltd. (hereinafter referred to as the "Company") intends to acquire 100% of the equity of Hainan Sifang Investment Co., Ltd. (hereinafter referred to as "Hainan Sifang") in cash, thereby indirectly holding 56.6750% of the equity of Chengdu Cold & Low Temperature Technology Co., Ltd. (hereinafter referred to as "Cold & Low Temperature Technology"), and including Cold & Low Temperature Technology in the Company's consolidated financial statements.

During this acquisition process, Cold & Low Temperature Technology plans to introduce other investors through capital increase and share expansion. After the capital increase is completed, other investors will hold 10% of the equity of Cold & Low Temperature Technology. After Cold & Low Temperature Technology introduces other investors, the Company's indirect shareholding in Cold & Low Temperature Technology through Hainan Sifang will change to 51.00%, and Cold & Low Temperature Technology will still be included in the Company's consolidated financial statements.

1. The "Letter of Intent for Equity Acquisition" signed this time is an intention agreement among the parties. Specific matters involved in this equity acquisition, including transaction amount and transaction plan, are subject to comprehensive due diligence, audit, and asset appraisal, and further negotiation based on the results. The final terms of this transaction will be subject to the formal equity acquisition agreement and other relevant documents.

2. In accordance with the "Shenzhen Stock Exchange GEM Stock Listing Rules," "Shenzhen Stock Exchange Listed Company Self-Regulatory Supervision Guide No. 2 - Normative Operation of GEM Listed Companies," and other relevant regulations, this transaction does not constitute a related-party transaction. Based on preliminary calculations, this transaction is not expected to constitute a major asset restructuring as defined by the "Measures for the Administration of Major Asset Restructuring of Listed Companies."

3. This transaction is still in the planning stage, and it is currently impossible to predict its impact on the Company's operating performance for the current year.

4. The Company will, based on the progress of the transaction, fulfill the necessary decision-making procedures and information disclosure obligations in accordance with relevant laws and regulations and the "Articles of Association of Suzhou Tianmai Thermal Technology Co., Ltd." (hereinafter referred to as the "Articles of Association"). The final outcome of this transaction is uncertain, and investors are advised to invest rationally and be aware of investment risks.

I. Overview of the Transaction