Stock code: 688008 Stock abbreviation: Montage Technology Announcement No.: 2025-008

Montage Technology Co., Ltd

Announcement on the company's estimated external guarantee amount in 2025

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.

Important Content Notes:

Guarantor: Montage Technology Co., Ltd. (hereinafter referred to as the "Company") subsidiaries within the scope of the consolidated financial statements and subsidiaries newly established or included in the scope of the consolidated financial statements during the authorization period.

the amount of the guarantee and the actual balance of the guarantee; The Company expects to provide a total guarantee amount of RMB 1.2 billion (or equivalent in foreign currency) to its subsidiaries in 2025. As of the disclosure date of this report, the company has not provided guarantees for third parties, and the company's external guarantees are all guarantees provided to subsidiaries, with a balance of 4.0106 million US dollars.

The guarantee is still subject to submission to the general meeting of shareholders for consideration.

1. Overview of the guarantee

(1) In order to meet the daily operation and development needs of the Company's subsidiaries and ensure the smooth development of the Company's business, under the premise of controllable risks, the Company intends to provide a total guarantee limit of no more than RMB 1.2 billion for the subsidiaries within the scope of the consolidated statements (including the subsidiaries newly established or included in the scope of the consolidated statements during the authorization period, hereinafter referred to as the "Subsidiary") in the procurement of raw materials and equipment, software and technology, processing and other services, and the application for credit from banks and other financial institutions. The guarantee amount can be transferred between subsidiaries.

The aforesaid guarantee includes the company's guarantee for its subsidiaries and mutual guarantees between subsidiaries, and does not include the provision of guarantees for entities other than subsidiaries.

The guarantee limit is valid from the date of approval by the general meeting of shareholders to the date of approval of the new guarantee line at the 2025 annual general meeting of shareholders, and the guarantee line can be recycled during the above validity period.

(2) Deliberations on the performance of the guarantee

The company held the sixth meeting of the third board of directors on April 10, 2025, and deliberated and approved the "About

The company's 2025 annual external guarantee quota proposal. This proposal still needs to be submitted to the general meeting of shareholders for deliberation.

2. Basic information of the guarantor

In 2025, the proposed guarantee objects are all subsidiaries of the company, and the guarantors are as follows:

(1) Montage Electronic Technology (Kunshan) Co., Ltd

1. Founded: May 26, 2017

2. Place of registration: No. 628, Xia Dong Street, Kunshan Development Zone

3. Legal representative: Yang Chonghe

4. Registered capital: RMB 50,000,000

5. Business scope: engaged in technology development, technical services, technology transfer, and technical consulting in the professional field of electronic science and technology; design, wholesale, trade agency of integrated circuits, software products, electronic components, electronic products and related electronic systems and provide related supporting technical services; Import and export of goods and technology. (For projects subject to approval in accordance with the law, business activities can only be carried out after approval by relevant departments)

6. Shareholding structure: 100% of the company's direct shareholding

7. Whether it is a judgment defaulter: No

8. Key financial indicators (unaudited): Total assets as of December 31, 2024 227,502.24

10,000 yuan, total liabilities of 108.3087 million yuan, net assets of 2166.7137 million yuan; 2024 main business income

884.7532 million yuan, net profit 687.6726 million yuan.

(2) Montage Electronic Technology (Shanghai) Co., Ltd

1. Founded: April 18, 2018

2. Place of registration: C, No. 888, Huanhu West 2nd Road, Lingang New Area, China (Shanghai) Pilot Free Trade Zone

floor

3. Legal representative: Yang Chonghe

4. Registered capital: RMB 35,000,000

5. Business scope: general projects: technical services, technology development, technical consultation, technology exchange, technology transfer, technology promotion; integrated circuit design; sales of integrated circuit chips and products; integrated circuit sales; soft

development; wholesale of computer hardware and software and auxiliary equipment; wholesale of electronic components; sales of electronic products; import and export of goods; technology import and export; information system integration services; consulting and planning services; Business management consulting. (Except for projects subject to approval in accordance with the law, independently carry out business activities with a business license in accordance with the law)

6. Shareholding structure: 100% of the company's direct and indirect shares

7. Whether it is a judgment defaulter: No

8. Key financial indicators (unaudited): Total assets of 48,058.54 as of December 31, 2024

10,000 yuan, total liabilities of 795.0399 million yuan, net assets -314.4545 million yuan; In 2024, the main business income will be 359.984 million yuan, and the net profit will be -24.9215 million yuan.

(3) Montage Electronic Technology (Zhuhai Hengqin) Co., Ltd

1. Founded: June 6, 2024

2. Place of registration: Government Affairs Service Center, Building 2, Citizen Service Center, No. 868 Hong Kong and Macao Avenue, Hengqin, Zhuhai

Room 114-1354 (centralized office area)

3. Legal representative: Yang Chonghe

4. Registered capital: RMB 10,000,000

5. Business scope: general projects: technical services, technology development, technical consultation, technology exchange, technology transfer, technology promotion; integrated circuit design; integrated circuit sales; sales of integrated circuit chips and products; software development; wholesale of computer hardware and software and auxiliary equipment; wholesale of electronic components; sales of electronic products; import and export of goods; technology import and export; information system integration services; consulting and planning services; Business management consulting. (Except for projects subject to approval in accordance with the law, independently carry out business activities with a business license in accordance with the law)

6. Shareholding structure: 51% directly held by the company

7. Whether it is a judgment defaulter: No

8. Key Financial Indicators (Unaudited): Total assets of 14,983.17 as of December 31, 2024

10,000 yuan, total liabilities of 199.8302 million yuan, net assets -49.9985 million yuan; In 2024, the main business income is 0

10,000 yuan, net profit -150.2785 million yuan.

(4) Montage Technology Macao Commercial Offshore Limited

1. Registration: May 12, 2003

2. Main place of business: Macao Special Administrative Region

3. Directors: Chong Ho Yeung, Stephen Kuong-io Tai

4. Registered capital: MOP500,000

5. Main business: chip R&D and sales

6. Shareholding structure: 100% of the company's indirect shareholding

7. Whether it is a judgment defaulter: No

8. Key Financial Indicators (Unaudited): Total assets of 28,862.32 as of December 31, 2024

10,000 yuan, total liabilities of 113.9667 million yuan, net assets of 174.6565 million yuan; 2024 main business income

506.7094 million yuan, net profit 58.3056 million yuan.

In addition to the above-mentioned entities, the company's guarantors include other subsidiaries newly established or included in the scope of consolidated statements during the authorization period.

3. The main content of the security agreement

At present, the company has not signed the relevant guarantee agreement (except for the previous agreement that is still valid), and the estimated amount of the above guarantee is only the guarantee amount to be provided by the company for the company's subsidiaries in the daily operation of raw materials and equipment procurement, software and technology procurement, processing and other service procurement business and application for credit from banks and other financial institutions, etc., and the specific guarantee amount, guarantee type, guarantee period and signing time are subject to the actual signed contract.

4. The reason and necessity of the guarantee

The purpose of this guarantee is to ensure the continuous and steady development of the daily operation of the subsidiary, which is conducive to supporting the healthy development of the subsidiary and meeting the actual needs of the company's overall production and operation. The guarantor is a wholly-owned or holding subsidiary of the company, and the company has control over it, and the guarantee risk is small, and it will not adversely affect the interests of the company and all shareholders.

The guarantor is a non-wholly-owned holding subsidiary newly established by the company or included in the scope of the consolidated statements, and considering the nature of the other shareholders of the holding subsidiary and the convenience of the actual business operation, the guarantee will be provided by the company in excess of the proportion. If the shareholders of the guaranteed person are related parties of the company, the related party shall provide a counter-guarantee to the company.

5. Explanation of relevant opinions

All directors unanimously agreed that the estimated amount of external guarantee is in line with the actual needs of the company's overall production and operation, and will help meet the company's daily capital use and business scope needs. The guarantors are all holding subsidiaries within the scope of the company's consolidated statements, with stable production and operation, no overdue guarantees, controllable guarantee risks, no resource transfer or benefit transfer, and no damage to the interests of the company and shareholders, especially small and medium-sized shareholders. The board of directors agreed to the estimated amount of the company's external guarantee.

6. The cumulative amount of external guarantee and the amount of overdue guarantee

As of the disclosure date of this announcement, the company does not provide guarantees for third parties, and the company's external guarantees are all guarantees provided to subsidiaries, with a balance of 4.0106 million US dollars, accounting for 0.26% and 0.24% of the company's latest audited net assets and total assets respectively. The company does not have overdue external guarantees and litigation guarantees.

The announcement is hereby made.

Montage Technology Co., Ltd

Board of Directors

April 11, 2025