Beijing Electronic City High-Tech Group Co., Ltd. Announcement on the Implementation of Daily Related Party Transactions in 2025 and the Forecast of Daily Related Party Transactions in 2026

Security Code: 600658 Stock Short Name: Electronic City Announcement No.: Lin 2026-010

Beijing Electronic City High-Tech Group Co., Ltd.

Announcement on the Implementation of Daily Related Party Transactions in 2025
and the Estimated Daily Related Party Transactions for 2026

The board of directors of the Company and all directors hereby warrant that the contents of this announcement contain no false records, misleading statements, or material omissions, and assume legal responsibility for the truthfulness, accuracy, and completeness of its contents.

Key Matters to Note:

● This matter concerning daily related party transactions does not require submission to the Company’s shareholders’ meeting for consideration.

● The matters concerning daily related party transactions under this announcement follow the principles of fairness, arm’s length, and market-oriented terms, and will not have an adverse impact on the Company’s future financial position or operating results; nor will they create reliance on related parties, nor affect the Company’s independence.

I. Basic Information on Daily Related Party Transactions

(I) Examination and Approval Procedures for Daily Related Party Transactions

Beijing Electronic City High-Tech Group Co., Ltd. (hereinafter referred to as the “Company,” including subsidiaries within the scope of consolidated financial statements) for the convenience of daily production and operation business, adhering to the principles of fairness, openness, and impartiality, and based on market prices and government-guided prices for projects such as procurement of raw materials, property leasing, sale of products, and provision of services, intends to conduct daily operating-related party transactions with related parties.

On April 1, 2026, the Company convened an independent directors’ special meeting, the First Meeting of 2026, and deliberated and approved the “Proposal on the Estimated Daily Related Party Transactions for 2026.” All independent directors unanimously agreed to the proposal. They believed that: the implementation of the Company’s daily related party transactions in 2025 and the plan for its daily related party transactions in 2026 were formulated based on normal market transaction conditions and relevant agreements; both are required for the Company’s daily business operations. Such related party transactions are benchmarked against market prices and government-guided prices. The pricing is fair, and there is no circumstance that harms the interests of the Company and all shareholders, in particular the interests of small and medium shareholders.

On April 1, 2026, the Company convened the Seventh Meeting of the 13th Session of the Board of Directors, and deliberated and approved the “Proposal on the Estimated Daily Related Party Transactions for 2026.” During the consideration of this proposal, the Company’s related directors, namely Mr. Qi Zhan yong, Mr. Zhang Yuwei, Mr. Song Liguang, and Mr. Chen Zhaozhen, recused themselves from voting; independent directors Ms. Song Jianbo, Mr. Yin Zhiqiang, and Mr. Liu Zhidong voted in favor of this proposal. The board of directors of the Company is of the view that: the various daily related party transactions expected to occur in 2026 are made based on the Company’s needs for production and operation, and constitute normal transaction conduct, which is beneficial to optimizing the Company’s allocation of resources and improving production efficiency. The daily related party transactions between the Company and related parties are conducted on the basis of fairness and mutual benefit, do not harm the interests of the listed company and small and medium shareholders, and will not have an adverse impact on the Company’s financial position and operating results for the current period and in the future.

The total amount of daily related party transactions expected for 2026 will not exceed 5% of the Company’s audited net assets of the most recent period, and therefore does not need to be submitted to the shareholders’ meeting for consideration.

(II) Estimated and Implemented Status of Daily Related Party Transactions in 2025

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(III) Estimated Amounts and Categories of Daily Related Party Transactions for 2026

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II. Introduction to the Major Related Parties and Related Party Relationships

(I) Basic Information on the Major Related Parties

Controlling Shareholder: Beijing Electronic Control Co., Ltd. (hereinafter referred to as “Beijing Electronic Control”)

1、Name of the enterprise: Beijing Electronic Control Co., Ltd.

2、Type of enterprise: Limited liability company (state-owned, wholly owned)

3、Date of establishment: April 8, 1997

4、Company address: No. 6, Section 6, Xiliutun West Sixth Street, Area A, Chaoyang District, Beijing

5、Legal representative: Zhang Jingsong

6、Registered capital: RMB 7.01B

7、Unified Social Credit Code: 91110000633647998H

8、Principal business: operation and management of state-owned assets within authorized scope; investment and investment management in communication-related, radio and television audio-visual-related, computer and external equipment and application-related, electronic basic raw materials and components-related, household appliances and electronic products-related, electronic measuring instruments and meters-related, mechanical and electrical equipment-related, transportation electronics-related products and products outside the electronic industry, as well as real estate development; leasing and selling commodity housing; property management.

9、Equity structure: Beijing State Capital Operation and Management Co., Ltd. holds 100% of the shares.

10、Major financial data for the last year and the latest period

Unit: RMB ten thousand

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(II) Related Party Relationship with the Listed Company

Pursuant to the provisions of the Shanghai Stock Exchange’s Listing Rules for Stocks, Beijing Electronic Control is the Company’s controlling shareholder and actual controller. Beijing Electronic Control and its subsidiaries constitute a related party relationship with the Company.

For reasons such as project cooperation, park operations, and the technology industrial parks developed by the Company for occupancy, Beijing Electronic Control and multiple subsidiaries have business dealings with the Company, including property leasing, sales and purchase of commodities, and provision of services, thereby forming related party transactions. The Company’s daily related party transactions mainly occur between Beijing Electronic Control and its subsidiaries.

(III) Analysis of Performance Capability

Beijing Electronic Control and its subsidiaries are all validly existing and operating normally in accordance with the law, have sound financial conditions, and possess good performance capability; they are not persons subject to trust-breaking execution.

III. Main Contents of Related Party Transactions and Pricing Policies

(I) Pricing principles for daily related party transactions: The relevant agreements between the Company and related parties will, based on the principles of fairness, arm’s length, and transaction terms, and through consultation with each related party, be signed for various service projects including property leasing, property services, and operation and maintenance services on the basis of government-guided prices and market prices. The pricing method will be determined by both transaction parties according to the specific circumstances of the related transaction matters and will be specified in the specific related party transaction contracts.

(II) Signing of related party transaction agreements: Based on actual needs for production and operation, the Company and its subsidiaries sign related party transaction agreements with related parties separately for each business based on when each business occurs.

IV. Purpose of Related Party Transactions and Impact on the Listed Company

The various daily related party transactions expected to occur in 2026 are made based on the Company’s needs for production and operation, and constitute normal transaction conduct, which is beneficial to optimizing the Company’s allocation of resources and improving production efficiency. The daily related party transactions between the Company and related parties are conducted on the basis of fairness and mutual benefit, do not harm the interests of the listed company and small and medium shareholders, and will not have an adverse impact on the Company’s financial position and operating results for the current period and in the future. They will not create reliance on related parties, nor affect the Company’s independence.

This announcement is hereby issued.

Beijing Electronic City High-Tech Group Co., Ltd.

Board of Directors

April 1, 2026

Security Code: 600658 Stock Short Name: Electronic City Announcement No.: Lin 2026-009

Beijing Electronic City High-Tech Group Co., Ltd.

Resolution Announcement of the Seventh Meeting of the 13th Session of the Board of Directors

The board of directors of the Company and all directors hereby warrant that the contents of this announcement contain no false records, misleading statements, or material omissions, and assume legal responsibility for the truthfulness, accuracy, and completeness of its contents.

The Seventh Meeting of the 13th Session of the Board of Directors of Beijing Electronic City High-Tech Group Co., Ltd. (hereinafter referred to as the “Company”) was held in the Company’s conference room on April 1, 2026. The meeting notice and relevant documents were delivered to the members of the board five days prior to the meeting by written materials, email, and direct delivery by designated personnel. There were 7 directors required to attend the meeting, and 7 directors actually attended. The Company’s senior management personnel and the general counsel attended the meeting. The meeting was chaired by the Company’s chairman, Mr. Qi Zhan yong. The meeting procedures comply with the relevant provisions of the “Company Law” and the “Articles of Association.” The directors attending the meeting deliberated and approved the “Proposal on the Estimated Daily Related Party Transactions for 2026” by way of recorded voting.

Voting results: 3 votes in favor, 0 votes against, and 0 votes abstained. During the consideration of this proposal, the Company’s related directors, Mr. Qi Zhan yong, Mr. Zhang Yuwei, Mr. Song Liguang, and Mr. Chen Zhaozhen recused themselves from voting; independent directors Ms. Song Jianbo, Mr. Yin Zhiqiang, and Mr. Liu Zhidong voted in favor of this proposal.

The various daily related party transactions expected to occur in 2026 are made based on the Company’s needs for production and operation, and constitute normal transaction conduct, which is beneficial to optimizing the Company’s allocation of resources and improving production efficiency. The daily related party transactions between the Company and related parties are conducted on the basis of fairness and mutual benefit, do not harm the interests of the listed company and small and medium shareholders, and will not have an adverse impact on the Company’s financial position and operating results for the current period and in the future. They will not create reliance on related parties, nor affect the Company’s independence.

This proposal has already been deliberated and approved at the independent directors’ special meeting of the Company’s board of directors, the First Meeting of 2026, and does not require submission to the shareholders’ meeting for consideration.

Please refer to the announcement on the same date published by the Company in China Securities Journal, Shanghai Securities News, Securities Times, Securities Daily, and on the website of the Shanghai Stock Exchange (http://www.sse.com.cn), titled “Announcement on the Implementation of Daily Related Party Transactions in 2025 and the Estimated Daily Related Party Transactions for 2026” (Lin 2026-010)

This announcement is hereby issued.

Beijing Electronic City High-Tech Group Co., Ltd.

Board of Directors

April 1, 2026

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