Simplified Report on Changes in Equity

Tibet Gaozheng Civil Explosives Co., Ltd.

Simplified Report on Changes in Equity

Listed Company Name: Tibet Gaozheng Civil Explosives Co., Ltd.

Stock Exchange: Shenzhen Stock Exchange

Stock Abbreviation: Gaozheng Civil Explosives

Stock Code: 002827

Information Disclosure Obligor Name: Tibet Construction Engineering and Building Materials Group Co., Ltd.

Domicile: No. 2 Planning Road, Liuwu New District, Lhasa, Tibet (East-West Direction)

Communication Address: No. 2 Planning Road, Liuwu New District, Lhasa, Tibet (East-West Direction)

Nature of Share Change: Reduction of shares (free transfer of state-owned equity)

Signing Date: August 2026 [blank]

Statement of Information Disclosure Obligor

1. The information disclosure obligor has prepared this report in accordance with the Company Law of the People's Republic of China, the Securities Law of the People's Republic of China, the Administrative Measures for the Takeover of Listed Companies, and the Standards for the Contents and Formats of Information Disclosure by Companies Offering Securities to the Public No. 15 — Report on Changes in Equity.

2. In accordance with the relevant regulations of the Securities Law of the People's Republic of China, the Administrative Measures for the Takeover of Listed Companies, and the Standards for the Contents and Formats of Information Disclosure by Companies Offering Securities to the Public No. 15 — Report on Changes in Equity, this report has fully disclosed the changes in the shares held by the information disclosure obligor in Tibet Gaozheng Civil Explosives Co., Ltd. As of the date of signing this report, except for the information disclosed herein, the information disclosure obligor has not increased or decreased its equity in Tibet Gaozheng Civil Explosives Co., Ltd. through any other means.

3. The information disclosure obligor has obtained the necessary authorization and approval to sign this report, and its performance does not violate or conflict with any terms in the articles of association or internal rules of the information disclosure obligor.

4. As of the signing date of this report, this change in equity has not yet officially taken effect. This change in equity is still subject to obtaining a no-objection opinion from the anti-monopoly authority regarding the concentration of business operators (if necessary), obtaining a compliance confirmation opinion from the Shenzhen Stock Exchange, and completing the share transfer registration procedures at the Shenzhen Branch of China Securities Depository and Clearing Corporation.

5. This change in equity is conducted based on the information stated in this report. The information disclosure obligor has not entrusted or authorized any other person to provide information not listed in this report or to make any explanations or statements regarding this report.

6. The information disclosure obligor promises that this report does not contain any false records, misleading statements, or major omissions, and assumes individual and joint legal responsibility for its authenticity, accuracy, and completeness.

Table of Contents

1. Definitions

2. Section 1: Introduction to the Information Disclosure Obligor

3. Section 2: Purpose of Equity Change

4. Section 3: Method of Equity Change

5. Section 4: Transactions of Listed Company Shares in the Previous 6 Months

6. Section 5: Other Major Matters

7. Section 6: Documents Available for Inspection

8. Statement of Information Disclosure Obligor

Definitions

In this report, unless the context otherwise requires, the following abbreviations have the following meanings: