Korean listed companies, ranked by interest coverage

Interest coverage — operating income divided by finance costs — for every Korean listed company that filed both figures in its most recent annual report. Sorted highest first: the higher the number, the more times over operating profit covers interest expense.

Why you can trust this number

This ratio is operating income ÷ finance costs from the same annual filing — not adjusted, annualised, or smoothed.
A company that filed no finance-cost line (often because it carries little or no interest-bearing debt) is left out of this ranking, not shown as an infinite or zero ratio.
A value under 1.0x means operating profit did not cover interest expense that year — we mark that as a fact from the filing, not as a warning or a forecast.
For the borrowings themselves rather than the coverage ratio, see the borrowings-to-equity measure on the full rankings page.

1,274 of 2,865 companies filed this figure — 1,591 did not, and are left out rather than shown as zero.

#	Company	Interest coverage	Employees	Industry
1	SAMIL ENTERPRISE CO., LTD. 002290	32758.39x	72	Building construction
2	LEENO Industrial Inc 058470	27254.14x	677	Electronics and telecom equipment
3	TRUEN Co., Ltd 417790	3379.29x	105	Electronics and telecom equipment
4	TOKAI CARBON KOREA CO., LTD 064760	2262.21x	471	Non-metallic minerals
5	WOT.CO.,LTD. 396470	1443.35x	41	Machinery and equipment
6	S&D Co., Ltd 260970	1430.55x	137	Food products
7	SUNG KWANG BEND CO., LTD. 014620	857.91x	313	Basic metals
8	SOOSAN INT Co., LTD. 050960	734.43x	142	Publishing
9	STIC Investments, Inc. 026890	679.79x	75	Financial services
10	Korea Ratings Corporation 034950	487.68x	172	Business facilities support
11	SEWOONMEDICAL CO,. LTD. 100700	357.55x	187	Pharmaceuticals
12	kt millie seojae Co.,Ltd 418470	344.73x	221	Publishing
13	KOREAN DRUG CO., LTD. 014570	327.80x	238	Pharmaceuticals
14	Atinum Investment Co., Ltd 021080	324.25x	50	Financial services
15	BITComputer 032850	316.41x	138	Publishing
16	PROTIA INC. 303360	315.96x	113	Medical and optical instruments
17	LDTInc. 096870	310.45x	62	Electronics and telecom equipment
18	WOOJIN Ntec Inc. 457550	300.18x	332	Other scientific and technical services
19	CHERYONG INDUSTRIAL CO.,LTD. 147830	288.07x	50	Fabricated metal products
20	HRS Co., Ltd 036640	262.15x	167	Chemicals
21	GMI Venture Co.,Ltd 019570	243.39x	9	Financial services
22	T&L Co., LTD. 340570	222.18x	237	Pharmaceuticals
23	Very Good Tour Co.,Ltd. 094850	138.48x	363	Business facilities support
24	LX Holdings Corp. 383800	132.87x	42	Financial services
25	DAIHAN SCIENTIFIC CO., Ltd 131220	125.45x	120	Wholesale trade
26	Samjin 032750	114.18x	63	Electronics and telecom equipment
27	BIOBIJOU Co., Ltd. 489460	110.65x	51	Chemicals
28	DONG SUH COMPANIES INC. 026960	103.11x	275	Wholesale trade
29	TBC 033830	94.28x	114	Broadcasting
30	SM Life Design Group Co., Ltd. 063440	91.87x	34	Printing and reproduction
31	NICE Information Service Co., Ltd. 030190	91.67x	770	Information services
32	KRAFTON, Inc. 259960	90.54x	2,118	Publishing
33	JLS CO.,LTD. 040420	85.58x	527	Education
34	S-1 CORPORATION 012750	84.12x	7,044	Business facilities support
35	Innotena, Inc. 333050	75.64x	124	Publishing
36	SEBO MANUFACTURING ENGINEERING CORPORATION 011560	74.47x	588	Civil engineering
37	MNC Solution Co., Ltd 484870	72.31x	337	Machinery and equipment
38	Stonebridge Ventures Inc. 330730	72.21x	22	Financial services
39	ADforus Co., Ltd. 397810	70.80x	30	Professional services
40	SEOYON TOPMETAL CO., LTD. 019770	68.74x	217	Machinery and equipment
41	POLARIS UNO, Inc. 114630	67.00x	104	Chemicals
42	IGLOO Corporation 067920	66.97x	1,157	Information services
43	SK Square Co., Ltd. 402340	62.56x	84	Financial services
44	ORICOM Inc 010470	61.34x	306	Professional services
45	SHINIL PHARMACEUTICAL CO., LTD. 012790	58.32x	413	Pharmaceuticals
46	Cellromax Science Co., Ltd. 471820	56.16x	52	Food products
47	DAEHYUN CO.,LTD 016090	53.78x	387	Apparel
48	SANIL ELECTRIC CO., LTD 062040	52.84x	333	Electrical equipment
49	Cafe24 Corp. 042000	48.12x	982	Information services
50	Genic Co.,Ltd 123330	45.49x	385	Chemicals
51	KYUNGDONG CITY GAS CO.,LTD 267290	44.91x	301	Electricity and gas
52	NeopharmCO.,LTD. 092730	44.76x	192	Chemicals
53	C&G Hi Tech Co., Ltd 264660	44.02x	200	Machinery and equipment
54	TELCOWARE CO.,LTD. 078000	43.28x	172	Information services
55	Nine & Company Inc. 366030	43.24x	102	Apparel
56	AVATEC CO.,LTD. 149950	42.99x	387	Electronics and telecom equipment
57	Chips&Media, Inc. 094360	41.12x	86	Electronics and telecom equipment
58	Hironic Co.,Ltd 149980	40.77x	91	Medical and optical instruments
59	GFI Co., Ltd 493330	39.39x	96	Machinery and equipment
60	PUM-TECH KOREA CO., LTD. 251970	38.17x	665	Rubber and plastics
61	Sukgyung AT Co., Ltd. 357550	37.39x	89	Chemicals
62	CUCKOO HOMESYS CO.,LTD 284740	36.16x	987	Employment services
63	BIO-FD&C CO.,LTD. 251120	35.93x	78	Pharmaceuticals
64	HANKOOK COSMETICS MANUFACTURING CO.,LTD 003350	34.73x	247	Chemicals
65	Aiji net Inc. 462980	34.64x	42	Information services
66	Daejoo Inc. 003310	33.82x	179	Food products
67	SNT DYNAMICS CO.,Ltd 003570	31.81x	381	Motor vehicles
68	Youngone Holdings Co., Ltd 009970	30.55x	51	Financial services
69	HY-LOK CORPORATION 013030	30.02x	492	Basic metals
70	Hunesion co.,ltd 290270	29.94x	170	Publishing
71	INCHON CITY GAS 034590	29.17x	206	Electricity and gas
72	WONIK Materials Co.,Ltd. 104830	28.71x	531	Chemicals
73	MICHANG OIL IND CO.,LTD 003650	28.28x	84	Coke and refined petroleum
74	H&SHigh Tech Corp. 044990	28.18x	188	Electronics and telecom equipment
75	HANTECH LTD. 098070	28.17x	155	Fabricated metal products
76	PARTRONCO.,LTD 091700	27.37x	544	Electronics and telecom equipment
77	G2Power Co. Ltd 388050	26.76x	97	Electrical equipment
78	i3system Inc. 214430	26.45x	507	Electronics and telecom equipment
79	CHERYONG ELECTRIC CO.,LTD. 033100	26.29x	190	Electrical equipment
80	GEUMHWA PSC CO.,LTD. 036190	26.20x	1,170	Civil engineering
81	LOGISYS INC. 067730	26.11x	488	Computer programming
82	Sam-A Pharm. Co. Ltd 009300	24.89x	310	Pharmaceuticals
83	LG Corp. 003550	24.42x	195	Financial services
84	GAMSUNG Corporation Co., Ltd. 036620	24.41x	99	Wholesale trade
85	IBKIMYOUNG CO.,LTD. 339950	24.07x	397	Education
86	KohYoungTechnologyInc. 098460	23.49x	472	Machinery and equipment
87	GHOST STUDIO CO., LTD. 950190	21.93x	137	Publishing
88	AHNLAB,INC. 053800	21.80x	1,257	Publishing
89	Multicampus Corporation 067280	21.71x	902	Education
90	HYUNDAI AUTOEVER CORPORATION. 307950	21.47x	5,753	Publishing
91	i-Scream Media CO., LTD. 461300	21.17x	366	Publishing
92	Hugel, Inc. 145020	21.04x	629	Pharmaceuticals
93	WOOJIN INC 105840	20.33x	163	Medical and optical instruments
94	JEIL TECHNOS CO.,LTD 038010	20.33x	158	Fabricated metal products
95	SHIFT UP Corporation. 462870	19.96x	332	Publishing
96	Ubiquoss Inc. 264450	19.76x	190	Electronics and telecom equipment
97	Korea Computer & Systems Inc. 115500	19.60x	49	Computer programming
98	KONA I CO., LTD. 052400	19.56x	383	Publishing
99	CROWN CONFECTIONERY CO.,LTD 264900	19.35x	1,302	Food products
100	CHINYANG POLY URETHANE CO.,LTD 010640	18.72x	90	Rubber and plastics

See all 15 measures, sortable and filterable, on the full rankings page →

Frequently asked

What is interest coverage?

Operating income divided by finance costs (interest expense), from the same fiscal year’s annual filing. A ratio of 3x means operating profit was three times the interest bill that year.

What does an interest coverage ratio below 1 mean?

It means operating income did not cover finance costs that year, as filed. It is one year’s figure, not a trend or a solvency forecast — check whether the shortfall repeats across years before drawing a conclusion.

Why are roughly half of listed companies missing from this ranking?

A company is left out, not shown at zero, when it filed no finance-cost line at all — common for companies with little or no interest-bearing debt. About 44.5% of listed companies had both figures on file at the time this page was built.

Source

Financial Supervisory Service, DART Open API — 2025 annual filings, most recent basis (consolidated where filed, otherwise separate). Data as of 2026-10-28 17:32:30 KST. Not investment advice.

SMarkets · KLifeDesign InC. · https://seoulmarkets.com/rankings/interest-cover