Report on Simplified Change of Equity (II) (Revised Version)

Guocheng Mining Co., Ltd.

Report on Simplified Change of Equity (II)

(Revised Version)

Company Name: Guocheng Mining Co., Ltd.

Stock Exchange: Shenzhen Stock Exchange

Stock Abbreviation: Guocheng Mining

Stock Code: 000688

Information Disclosure Obligor Name: Hangzhou Jicheng Enterprise Management Partnership (Limited Partnership)

Domicile: Room 1602, 16th Floor, No. 868 Dongguan Road, Puyan Street, Binjiang District, Hangzhou City, Zhejiang Province

Correspondence Address: Room 1602, 16th Floor, No. 868 Dongguan Road, Puyan Street, Binjiang District, Hangzhou City, Zhejiang Province

Nature of Equity Change: Increase (Agreement Transfer)

Signing Date: July 1, 2026

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, the Contents and Formats of Information Disclosure by Companies Offering Securities to the Public No. 15—Report on Change of Equity, and other relevant laws and regulations.

2. The signing of this report by the information disclosure obligor has obtained necessary authorization and approval, and its performance does not violate or conflict with any terms of the obligor's articles of association or internal rules.

3. In accordance with the Company Law, Securities Law, Takeover Measures, and Guideline No. 15, this report has fully disclosed the changes in the equity held by the information disclosure obligor in Guocheng Mining Co., Ltd. As of the date of signing this report, except for the information disclosed herein, the aforementioned information disclosure obligor has not increased or decreased its equity in Guocheng Mining Co., Ltd. through any other means.

4. This change of equity is conducted based on the materials stated in this report. The information disclosure obligor has not entrusted or authorized any other person to provide information not contained in this report or to make any explanation or statement regarding this report.

5. The information disclosure obligor promises that this report does not contain 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 and Shareholding Plan

Section IV Method of Equity Change

Section V Transactions of Listed Shares in the Previous Six Months

Section VI Other Important Matters

Section VII Documents Available for Inspection

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