Announcement on External Investment

Suzhou Dongshan Precision Manufacturing Co., Ltd.·June 16, 2026·3 pages

✨ AI Summary

Suzhou Dongshan Precision Manufacturing Co., Ltd. announced its external investment of $1.2 billion to expand production of optical chips and modules through its subsidiary, Source Photonics. This investment aims to meet growing AI demand and enhance competitiveness. The project is funded by internal resources and does not constitute a related party transaction or major asset restructuring.

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Securities Code: 002384

Securities Abbreviation: Dongshan Precision

Announcement No.: 2026-034

Announcement on External Investment

The Company and the Board of Directors guarantee that the information disclosed is true, accurate, and complete, and contains no false records, misleading statements, or major omissions.

Special Notice:

Solace Photonics will be included in the Company's consolidated financial statements starting from October 2025. Currently, Solace Photonics' operations are stable and normal. In the first quarter of 2025 and 2026, Solace Photonics' revenue accounted for 3.58% and 16.02% of the Company's consolidated operating revenue, respectively, and its profits accounted for 22.69% and 52.92% of the Company's consolidated profits, respectively.
In the future, the Company may face uncertainties in its overall business performance due to factors such as macroeconomic conditions, industry policies, market changes, and operational management. Investors are advised to make decisions cautiously and be aware of investment risks.

I. Overview of External Investment

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