GRINM Semiconductor Materials. 

GRINM Semiconductor Materials Co., Ltd. engages in the research, development, production, and operation of silicon and other semiconductor materials and equipment in China. The company offers silicon single crystals and silicon wafers for IC, large-diameter silicon single crystals and products for the IC etching process, FZ silicon crystals and silicon wafers,polycrystalline products,and semiconductor clean pipe valve components. It also provides related technology development, technology transfer and technical consulting services. In addition, the company exports its products to the United States, Japan, South Korea, Taiwan, and other regions. The company was founded in 2001 and is based in Beijing, China.