Securities code: 688116 Securities abbreviation: Tiannai Technology Announcement No.: 2025-010

Convertible bond code: 118005 Bond abbreviation: Tiannai convertible bond

Jiangsu Tiannai Technology Co., Ltd

Announcement on the cancellation of part of the special account for raising funds

The board of directors and all directors of the company guarantee that there are no false records, misleading statements or material omissions in the content of this announcement, and assume legal responsibility for the authenticity, accuracy and completeness of its content in accordance with the law.

Jiangsu Tiannai Technology Co., Ltd. (hereinafter referred to as the "Company") has opened a special account for raising funds in the bank in accordance with the provisions of relevant laws, regulations and normative documents. Recently, the company has completed the cancellation procedures of part of the special account for raising funds, and the specific situation is hereby announced as follows:

First, the basic situation of the funds raised

After the China Securities Regulatory Commission issued the "Reply on Agreeing to the Registration of the Initial Public Offering of Shares of Jiangsu Tiannai Technology Co., Ltd." (Zheng Jian Xu Xu [2019] No. 1581), the company was publicly launched to the public for the first time

57,964,529 RMB ordinary shares (A shares) with a par value of RMB1.00 per share and an issue price of RMB16 per share,

The total amount of funds raised was 927,432,464 yuan, and the net amount of funds raised was 829,000,740 yuan after deducting the issuance expenses of 98,431,724 yuan (excluding VAT). Tianjian Certified Public Accountants (Special General Partnership) is the head of the company

The funds for the secondary public offering of new shares were verified, and on September 20, 2019, the "Inspection" was issued

Information Report (Tian Jian Yan [2019] No. 320).

2. The opening of a special account for raising funds

In order to standardize the use and management of the company's raised funds, improve the efficiency of the use of raised funds, and effectively protect the interests of investors, the company adopts a special account storage system for raised funds in accordance with the relevant regulations and requirements of the "Regulatory Guidelines for Listed Companies No. 2 - Regulatory Requirements for the Management and Use of Raised Funds by Listed Companies" and "Self-Regulatory Guidelines for Listed Companies on the Science and Technology Innovation Board of the Shanghai Stock Exchange No. 1 - Standardized Operation". The raised funds will be deposited in the special account for raised funds approved by the board of directors for centralized management, and the company will manage and use the raised funds in accordance with the requirements of the regulations.

In September 2019, the company and the sponsor Minsheng Securities Co., Ltd. (hereinafter referred to as "Minsheng Securities")

It is with Bank of Suzhou Co., Ltd. Changshu Branch, China CITIC Bank Co., Ltd. Zhenjiang Branch, and Jiangsu

The Zhenjiang Branch of Bank Co., Ltd. signed the Tripartite Supervision Agreement on Raised Funds, which clarified the rights of all parties

Benefits and obligations. Due to the change of some fundraising projects, the company and the sponsor Minsheng Securities launched in December 2020

Re-signed with Bank of Suzhou Co., Ltd. Changshu Branch and China CITIC Bank Co., Ltd. Zhenjiang Branch

The Tripartite Supervision Agreement on Raised Funds was concluded, which clarified the rights and obligations of all parties. Company in January 2023

changed the sponsor from Minsheng Securities to CITIC Securities Co., Ltd. (hereinafter referred to as "CITIC Securities"),

According to the relevant provisions of the China Securities Regulatory Commission's Administrative Measures for the Sponsorship Business of Securities Issuance and Listing, by

CITIC Securities completed the follow-up continuous supervision work; The Company, together with CITIC Securities, in April 2023 separately related to the aforesaid

The bank signed the Tripartite Supervision Agreement on Raised Funds and the Four-Party Supervision Agreement on Raised Funds, which clarified all parties

Rights and Obligations. There is no material difference between the aforesaid agreement and the model agreement on the supervision of funds raised by the Shanghai Stock Exchange

The company has strictly complied with the use of the raised funds.

As of the disclosure date of this announcement, the company's initial public offering of shares to raise funds special account opened as follows:

Fundraising projects

Account Name, Bank, Bank Account, Account Status

name

Jiangsu Tiannaike carbon nanotubes and vices

China CITIC Bank Co., Ltd. produces hydrogen and related

Technology Co., Ltd. 8110501013701373574 Composite product production This cancellation

Company Zhenjiang New District Branch

project

The annual output is 300 tons

Zhenjiang Xinna Material Bank of Suzhou Co., Ltd. m Carbon Material and

Material Technology Co., Ltd. 51207600000760 2,000 tons of conductive energy

Company Changshu Branch Masterbatch, 8,000 tons

Conductive paste project

Changzhou Tiannai Materials, Bank of Jiangsu Co., Ltd., Carbon Nanomaterials Research

Material Technology Co., Ltd. 70650188000167985 Development Center Construction Project This time it was cancelled

Company Zhenjiang Science and Technology Branch

Note: Zhenjiang Xinna Material Technology Co., Ltd. and Changzhou Tiannai Material Technology Co., Ltd. are both Jiangsu Tiannai

A wholly-owned subsidiary of Technology Co., Ltd.

3. The special account for raising funds cancelled this time

Fundraising projects

Account Name, Bank, Bank Account, Account Status

name

Jiangsu Tiannai carbon nanometer tube with

China CITIC Bank Co., Ltd. by-product hydrogen and

The 8110501013701373574 related complex joint venture of science and technology shares was cancelled this time

Co., Ltd. Zhenjiang New District Branch

production projects

Changzhou Tiannai Bank of Jiangsu Co., Ltd. Carbon nanomaterials

The R&D center of the 70650188000167985 of materials science and technology was cancelled this time

Co., Ltd. Zhenjiang Science and Technology Branch set up a project

In view of the fact that the raised funds deposited by the company in the above two special accounts for raising funds have been used up, the above-mentioned fundraising

The special fund collection account will no longer be used. In order to facilitate the management of the company's capital account, the company has recently raised the above funds

The special gold account shall be cancelled, and all the interest income from the balance of the above-mentioned special account for raising funds shall be transferred to the company's own account.

After the cancellation of the above-mentioned special account for raised funds, the corresponding regulatory agreement for raised funds will be terminated accordingly.

The announcement is hereby made.

Board of Directors of Jiangsu Tiannai Technology Co., Ltd

January 25, 2025