GRINM Semiconductor Materials Co., Ltd.(SHSE:688432) added to Shanghai Stock Exchange A Share Index

GRINM Semiconductor Materials Co Ltd is a China-based company mainly engaged in the research and development, production and sales of semiconductor silicon materials. The Company's products mainly include semiconductor silicon polishing wafers, silicon materials for etching equipment and fused silicon single crystals in semiconductor regions. The Company's products are mainly used in the manufacture of discrete devices, power devices, integrated circuits, silicon components for etching equipment, as well as automotive electronics, industrial electronics, aerospace and other fields. The Company mainly conducts its businesses in domestic and overseas markets.