Beijing Onmicro Electronics Co. (OnMicro), a top Chinese fabless RF chip designer, filed for an IPO on the Shanghai STAR Market on March 28, 2025. The company seeks to raise around CNY2.067 billion (approx. US$281.4 million), becoming the second unprofitable firm cleared under the updated STAR Market listing rules. With backing from Xiaomi and Huawei, OnMicro aims to break the foreign stronghold on high-end RF front-end semiconductors.