Q.S.I Co., LTD. Ratios and Metrics

Market cap in millions KRW. Fiscal year is January - December.

Millions KRW. Fiscal year is Jan - Dec.

Fiscal Year	Current	FY 2025	FY 2024	FY 2023	FY 2022	FY 2021
Period Ending	Apr '26 Apr 15, 2026	Dec '25 Dec 31, 2025	Dec '24 Dec 31, 2024	Dec '23 Dec 31, 2023	Dec '22 Dec 31, 2022	Dec '21 Dec 31, 2021
Market Capitalization	154,829	65,610	92,432	91,455	87,322	231,247
Market Cap Growth	92.84%	-29.02%	1.07%	4.73%	-62.24%	68.37%
Enterprise Value	128,237	43,312	73,916	78,725	72,351	226,083
Last Close Price	17510.00	7420.00	10225.17	9651.03	9081.65	24823.06
PE Ratio	62.09	26.08	28.41	33.73	12.46	148.37
PS Ratio	6.65	2.82	4.33	4.89	3.85	7.87
PB Ratio	1.77	0.75	1.10	1.11	1.08	3.10
P/TBV Ratio	1.81	0.77	1.13	1.14	1.10	3.21
P/FCF Ratio	49.62	21.03	172.90	25.10	26.82	42.21
P/OCF Ratio	32.63	13.83	28.60	16.71	16.53	28.07
EV/Sales Ratio	5.51	1.86	3.46	4.21	3.19	7.70
EV/EBITDA Ratio	47.44	15.92	18.91	-	15.61	38.97
EV/EBIT Ratio	-	147.39	62.40	-	39.21	83.58
EV/FCF Ratio	41.10	13.88	138.26	21.61	22.22	41.27
Debt / Equity Ratio	0.00	0.00	0.01	0.01	0.01	0.01
Debt / EBITDA Ratio	0.12	0.12	0.11	-	0.11	0.11
Debt / FCF Ratio	0.11	0.11	0.77	0.12	0.16	0.12
Net Debt / Equity Ratio	-0.30	-0.30	-0.30	-0.24	-0.17	-0.24
Net Debt / EBITDA Ratio	-9.77	-9.77	-6.37	12.26	-3.03	-3.14
Net Debt / FCF Ratio	-8.52	-8.52	-46.57	-5.43	-4.31	-3.33
Asset Turnover	0.26	0.26	0.24	0.22	0.27	0.38
Inventory Turnover	2.27	2.27	2.25	2.11	1.71	2.45
Quick Ratio	7.57	7.57	8.80	6.73	7.34	4.94
Current Ratio	9.70	9.70	11.39	8.72	11.02	6.87
Return on Equity (ROE)	2.94%	2.94%	3.91%	3.31%	9.00%	2.28%
Return on Assets (ROA)	0.20%	0.20%	0.84%	-3.05%	1.38%	2.18%
Return on Invested Capital (ROIC)	0.43%	0.44%	1.83%	-6.53%	2.43%	3.17%
Return on Capital Employed (ROCE)	0.30%	0.30%	1.40%	-5.00%	2.20%	3.60%
Earnings Yield	1.62%	3.83%	3.52%	2.96%	8.03%	0.67%
FCF Yield	2.02%	4.76%	0.58%	3.98%	3.73%	2.37%
Dividend Yield	0.74%	-	-	1.04%	1.10%	0.40%
Payout Ratio	41.63%	41.63%	28.04%	33.60%	13.24%	30.83%
Buyback Yield / Dilution	1.29%	1.29%	2.15%	0.29%	-9.76%	-2.00%
Total Shareholder Return	2.03%	1.29%	2.15%	1.33%	-8.66%	-1.59%

Updated Dec 31, 2025. Source: S&P Global Market Intelligence. Standard template. Financial Sources.