Simplified Report on Change of Equity (Chengjian Group)

HanJia Smart Tech Group Co., Ltd.

Simplified Report on Change of Equity

Company Name: HanJia Smart Tech Group Co., Ltd.

Stock Exchange: Shenzhen Stock Exchange

Stock Abbreviation: HanJia Smart Tech

Stock Code: 300746

Information Disclosure Obligor: Zhejiang Chengjian Group Co., Ltd.

Address: Room 403, Dishang Business Building, Gongshu District, Hangzhou, Zhejiang Province

Nature of Equity Change: Share reduction (agreement-based transfer)

Persons Acting in Concert: Cen Zhengping, Ou Weizhou

Address: No. 501, Hushu South Road, Gongshu District, Hangzhou

Nature of Equity Change: Share increase (agreement-based transfer)

Signing Date: July 2026

Declaration of Information Disclosure Obligor

1. This report is prepared 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, the Standards for the Contents and Formats of Information Disclosure by Companies Offering Securities to the Public No. 15—Report on Change of Equity, the Standards for the Contents and Formats of Information Disclosure by Companies Offering Securities to the Public No. 16—Report on the Takeover of Listed Companies, and other relevant laws, regulations, and departmental rules.

2. The Information Disclosure Obligor has obtained the necessary authorization and approval to sign this report, and its actions do not violate or conflict with any clauses in the Information Disclosure Obligor's articles of association or internal rules.

3. In accordance with 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 Change of Equity, this report fully discloses the changes in the shares held by the Information Disclosure Obligor in HanJia Smart Tech. As of the signing date of this report, except for the information disclosed herein, the Information Disclosure Obligor has not increased or decreased its equity interest in HanJia Smart Tech through any other means.

4. This equity change is conducted based on the information contained in this report. Except for the Information Disclosure Obligor, no other person has been entrusted or authorized to provide information not contained in this report or to make any explanations or statements regarding this report.

5. The Information Disclosure Obligor warrants that this report does not contain any false records, misleading statements, or major omissions, and assumes individual and joint legal liability for its authenticity, accuracy, and completeness.

Table of Contents

Section I Definitions

Section II Introduction to Information Disclosure Obligor

Section III Purpose of Equity Change

Section IV Method of Equity Change

Section V Transactions of Listed Company Shares in the Previous Six Months

Section VI Other Major Matters

Section VII Statement by Information Disclosure Obligor and Persons Acting in Concert

Section VIII Documents for Inspection

Appendix

Unless otherwise specified in the context, the following abbreviations in this report have the following meanings: