SG Micro Corp. (Ticker: 3661 HK) is a Chinese semiconductor company that designs, develops and sells analog integrated circuits and sensors. Its products include power management ICs, signal chain ICs, power supply monitoring chips, operational amplifiers, translation chips and sensors used in phones, computers, digital cameras, automotive electronics, industrial equipment, networking products and consumer electronics.

SG Micro plans to list H shares on the Hong Kong Stock Exchange on June 26, 2026. According to published terms, the company is offering 54.00 million primary shares at HKD 85.20 per share, raising approximately HKD 4.60 billion, or about $587 million. The offering includes a 15% greenshoe option of about 8.10 million shares. The profile indicates a market capitalization of approximately HKD 103.7 billion, or around $13.2 billion.

Founded in 2007 and based in Beijing, SG Micro had over 6,800 analog and sensor products across 38 categories as of the latest practicable date. According to the prospectus, IPO proceeds are expected to be used for R&D and product capacity, brand promotion and business development, working capital and strategic acquisitions. CICC Hong Kong Securities and Huatai Financial Holdings are the sponsors.