Q.S.I Co., LTD. (KOSDAQ:066310)

South Korea · Delayed Price · Currency is KRW

9,140.00

+80.00 (0.88%)

Feb 26, 2026, 2:30 PM KST

Revenue by Segment

Financials in millions KRW. Fiscal year is January - December.

Millions KRW. Fiscal year is Jan - Dec.

Fiscal Year	FY 2024	FY 2023	FY 2022	FY 2021	FY 2020	FY 2019	FY 2018	FY 2017	FY 2016	FY 2015
Period Ending	Dec '24 Dec 31, 2024	Dec '23 Dec 31, 2023	Dec '22 Dec 31, 2022	Dec '21 Dec 31, 2021	Dec '20 Dec 31, 2020	Dec '19 Dec 31, 2019	Dec '18 Dec 31, 2018	Dec '17 Dec 31, 2017	Dec '16 Dec 31, 2016	Dec '15 Dec 31, 2015
Optical Semiconductor Business	21.36B	18.69B	22.70B	29.38B	23.00B
Optical Semiconductor Business Growth	14.32%	-17.68%	-22.74%	27.72%	1.43%
Total	21.36B	18.69B	22.70B	29.38B	23.00B
Total Growth	14.32%	-17.68%	-22.74%	27.72%	1.43%

Revenue by Geography

Financials in millions KRW. Fiscal year is January - December.

Millions KRW. Fiscal year is Jan - Dec.

Fiscal Year	FY 2024	FY 2023	FY 2022	FY 2021	FY 2020	FY 2019	FY 2018	FY 2017	FY 2016	FY 2015
Period Ending	Dec '24 Dec 31, 2024	Dec '23 Dec 31, 2023	Dec '22 Dec 31, 2022	Dec '21 Dec 31, 2021	Dec '20 Dec 31, 2020	Dec '19 Dec 31, 2019	Dec '18 Dec 31, 2018	Dec '17 Dec 31, 2017	Dec '16 Dec 31, 2016	Dec '15 Dec 31, 2015
South Korea	1.86B	2.10B	3.18B	7.84B	3.87B
South Korea Growth	-11.39%	-33.98%	-59.37%	102.37%	28.56%
United States of America	1.36B	1.48B	2.10B	4.10B	4.20B
United States of America Growth	-8.10%	-29.41%	-48.82%	-2.37%	18.20%
China	15.02B	11.75B	13.94B	14.09B	12.87B
China Growth	27.85%	-15.70%	-1.08%	9.49%	-6.07%
Europe	2.63B	2.89B	2.84B	2.82B	1.84B
Europe Growth	-9.08%	1.70%	0.97%	53.13%	-12.49%
Other	489.52M	463.41M	636.26M	534.71M	221.72M
Other Growth	5.63%	-27.17%	18.99%	141.17%	-28.71%
Total	21.36B	18.69B	22.70B	29.38B	23.00B
Total Growth	14.32%	-17.68%	-22.74%	27.72%	1.43%

Source: S&P Global Market Intelligence.