Q.S.I CO., LTD. · (주)큐에스아이

QSI Co Ltd is a Korea-based company mainly engaged in the manufacture of semiconductor lasers and optical semiconductor-related products. The Company is mainly engaged in manufacturing and selling instrument parts, parts mounted in bar code scanners, parts mounted in laser printers and optical storage media parts. In addition, the Company is engaged in manufacturing and selling factory automation, robots and air cleaning parts, hair loss treatment and skin aging preventer parts and motion recognition parts. The Company sells its products in domestic and overseas markets. Employees 105 Sector Semiconductors