Zhuhai Jiuhai Semiconductor Co., Ltd. is a wholly-owned subsidiary of Apex Microelectronics. Its predecessor was Apex's IoT chip division, headquartered at Ninestar Co., Ltd. (China's top 500 listed companies, stock code: 002180). Jiuhai Semiconductor has 20 years of experience in integrated circuit chip design and is a professional provider of industrial-grade general-purpose microcontrollers, low-power Bluetooth chips and China's leading industrial IoT SoC-eSE large security chip products and solutions. It is committed to providing better products and services for industrial control, consumer electronics, medical equipment, smart homes and automotive applications.