China Resources Microelectronics Limited, an investment holding company, engages in the open foundry, integrated circuits (IC) design, IC testing and packaging, and discrete device businesses. The company provides IC manufacturing services for fables design houses and integrated device manufacturers. It also offers analog and power process technologies, including mixed signal, complementary metal-oxide-semiconductor (CMOS) logic, planar and trench double diffused metal oxide semiconductor (DMOS), an integration of bipolar and CMOS technology (BiCMOS), and DMOS devices (BCDMOS). In addition, China Resources Microelectronics Limited involves in the design and development of semiconductor IC products, such as MCU and audio and video processing SoC; analog and mixed signal ICs for power management and light emitting diode driving products; consumer ICs and wafers, including single chip radio circuits, audio amplifiers, calculation amplifiers, encoder/decoder circuits, LCD's, music voice, circuit for clock and watch, UPS and MCU, and photoelectric coupled receiver chips. Further, the company provides IC assembly, testing, and packaging services for semiconductor enterprises; and engages in the development and manufacture of power semiconductor discrete devices for energy saving lightings, home appliances, industrial control devices, and personal computers. It has operations in Mainland China, other countries in Asia, the United States, and Europe. The company was formerly known as CSMC Technologies Corporation and changed its name to China Resources Microelectronics Limited in 2008. China Resources Microelectronics Limited was founded in 1997. The company is based in Wuxi, China, and is considered a Red Chip company due to its listing on the Hong Kong Stock Exchange. As of November 2, 2011, China Resources Microelectronics Limited operates as a subsidiary of China Resources (Holdings) Co.,Ltd.