New Stock News | SG Micro Corp (300661.SZ) Hong Kong IPO prospectus invalid

SG Micro Corp (300661.SZ), also known as Shengbang Microelectronics (Beijing) Co., Ltd., submitted its Hong Kong IPO prospectus on September 28, 2025, which expired after 6 months on March 28, 2026. Huatai International and CICC were its joint sponsors at the time of submission. According to the prospectus, SG Micro Corp is a comprehensive analog integrated circuit (IC) company. The company develops and sells high-performance analog integrated circuits and sensors with functions such as sensing, amplifying, converting, and driving, which constitute the basic building blocks of all electronic systems. As of September 21, 2025, the company had approximately 6600 analog integrated circuit and sensor products covering 36 product categories. The company offers a wide range of general-purpose and application-specific optimized analog product portfolios, covering the two major areas of signal chain and power management, forming the dual pillars of the company's product matrix.