Dioo Microcircuits (688381.SH) announced its intention to acquire 100% equity of Rongpai Semiconductor from 16 shareholders, including Dongzhiwei, through a combination of share issuance and cash payments, while also raising supporting funds. The company's stock will resume trading on October 21, 2025 (Tuesday) at market open. Rongpai Semiconductor focuses on the design, R&D, and sales of high-performance, high-quality analog chips. Its product range includes digital isolators, isolation interfaces, isolation drivers, isolation sampling, and opto-MOS products, applicable in various sectors such as automotive electronics, industrial control, renewable energy, smart meters, and smart appliances. The company has achieved breakthroughs in domestic isolation chips by utilizing its proprietary capacitive smart voltage divider technology (iDivider technology) and has secured multiple invention patents in the isolation field. Both the listed company and Rongpai Semiconductor operate within the analog chip design industry, and mergers and acquisitions are key strategies for growth and strengthening within this sector. Following this transaction, the listed company will be able to rapidly expand its portfolio of isolator products, quickly leverage and integrate the mature patent technologies and R&D resources of the target company, enhance its product matrix, and significantly broaden its product categories, thereby further increasing its competitive advantage and providing more comprehensive solutions to a wider range of downstream customers. Additionally, Rongpai Semiconductor's extensive customer resources in automotive electronics, industrial control, and other fields will be a beneficial complement to the listed company's customer structure, allowing for greater sharing of these resources and providing various high-performance analog chip products to customers in more application areas, thereby significantly enhancing the company's market competitiveness.