Q.S.I Co., LTD. (KOSDAQ:066310)
South Korea flag South Korea · Delayed Price · Currency is KRW
8,120.00
-60.00 (-0.73%)
At close: Jul 18, 2025, 3:30 PM KST

Q.S.I Co., LTD. Company Description

Q.S.I Co., LTD. develops, manufactures, and sells red and infra-red laser diodes in South Korea and internationally. The company also provides foundry services, that includes Epi wafers, wafer foundry services, and package services.

Its laser diodes are used in power tools, medical, motion recognition, laser printers, lidar, and various sensors.

The company was founded in 2000 and is based in Cheonan-si, South Korea.

Q.S.I Co., LTD.
CountrySouth Korea
Founded2000
IndustrySemiconductors and Related Devices
Employees105
CEOCheong-Dae Lee

Contact Details

Address:
17 Cheonheung 8-gil
Cheonan-si, 31044
South Korea
Phone82 4 1410 5000
Websiteqsilaser.com

Stock Details

Ticker Symbol066310
ExchangeKOSDAQ
Stock TypeCommon Stock
Fiscal YearJanuary - December
Reporting CurrencyKRW
SIC Code3674

Key Executives

NamePosition
Cheong-Dae LeeChief Executive Officer