1. South Korea Stocks

  2. •

    Electronic technology

  3. •

    Electronic components
Seoul Electronics & Telecom Co., Ltd.

Seoul Electronics & Telecom Co., Ltd.

KKRX:027040
1,699.00
KRW
-51.00
(-2.91%)
-120.63EPS
29.02BMarket Cap
2013 Y
2014 Y
2015 Y
2016 Y
2017 Y
2018 Y
2019 Y
2020 Y
2021 Y
2022 Y
2023 Y
2024 Y
2025 Y
TTM
Revenue per Share
4,284.25
3,714.01
3,860.61
7,352.45
7,247.01
6,580.32
4,775.96
4,257.18
5,907.78
3,726.07
2,484.24
2,546.01
2,431.24
2,216.8
Basic EPS, GAAP
60
-1,710
-420
695
-125
-325
295
-240
5
-745
-1,045
-195
-385
-120.63
Free Cash Flow per Basic Share
-2,674.2
-2,156.57
-427.39
-1,089.4
-576.58
99.27
-398.56
190.41
-223.99
-240.27
95.3
-81.24
-235.16
-21.42
Dividend per Share
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
Book Value per Share
2,958.04
2,551.73
2,302.76
3,089.59
2,898.2
2,631.58
6,716.9
7,940.27
6,476.43
3,902.35
2,797.45
1,078.01
628.68
654.85
Tangible Book Value per Share
2,625.24
2,542.93
2,297.71
3,070.25
2,881.66
2,609.57
6,697.1
7,926.52
6,461.78
3,890.03
2,770.7
1,053.07
608.92
634.87
Basic Weighted Avg Shares
12
12
12
12
13
13
14
14
12
14
14
14
14
14
Sales/Revenue/Turnover
52,008
44,959
46,808
89,122
91,828
84,618
65,589
59,824
69,119
51,836
34,587
35,822
33,729
30,853
Operating Margin (%)
-1.42
-1.55
-2.32
3.06
0.83
-2
-2.79
-2.11
-0.17
-14.91
-10.86
-6.23
-4.77
-7.03
Depreciation Expense
5,612
5,987
1,836
1,899
1,823
1,999
2,423
2,807
2,660
2,115
2,094
1,358
1,184
1,167
Net Income, GAAP
728
-20,700
-5,092
8,424
-1,584
-4,179
4,051
-3,373
58
-10,364
-14,549
-2,744
-5,341
-1,679
Effective Tax Rate (%)
- -
- -
- -
21.74
- -
- -
- -
- -
93.38
- -
- -
193.72
- -
- -
Profit Margin (%)
1.4
-46.04
-10.88
9.45
-1.72
-4.94
6.18
-5.64
0.08
-19.99
-42.07
-7.66
-15.84
-5.44
Working Capital
29,167
12,275
664
8,972
12,018
2,956
4,382
649
-5,782
-1,934
-26,445
-13,477
3,711
3,419
LT Debt
15,152
2,244
2,386
5,739
9,097
4,710
2,952
631
2,293
20,020
3,779
3,198
2,010
1,810
Total Equity
54,198
30,422
27,113
37,409
37,540
34,086
93,483
110,510
90,137
54,311
38,934
15,003
8,750
9,114
Return on Invested Capital (%)
- -
- -
- -
4.27
- -
- -
- -
- -
-0.01
- -
- -
3.15
- -
- -
Return on Capital (%)
- -
- -
- -
18.39
- -
- -
- -
- -
0.09
- -
- -
-9.52
- -
- -
Return on Common Equity (%)
1.7
-62.06
-17.33
25.81
-4.23
-11.67
6.35
-3.31
0.06
-14.35
-31.21
-10.17
-44.97
-19.39

Capital Structure

KRW

•

in mil. unless spec.
Sep'25
Dec'25
Mar'26
ST Debt
23,535
14,275
9,577
LT Borrowings
775
617
433
LT Finance Leases
1,442
1,393
1,378
Preferred Equity and Hybrid Capital
- -
- -
- -
Shares Outstanding
14
14
14
Market Capitalization
15,588
13,291
29,018

Working Capital

KRW

•

in mil. unless spec.
Sep'25
Dec'25
Mar'26
Total Current Assets
17,523
22,832
17,557
Cash, Cash Equivalents & STI
4,606
10,817
6,723
Accounts Receivable, Net
7,476
6,491
5,175
Inventories
4,591
4,602
5,021
Total Current Liabilities
28,371
19,121
14,139
Payables & Accruals
- -
- -
- -
ST Debt
23,535
14,275
9,577
Deferred Revenue
- -
- -
- -

Growth Rates

KRW

•

in mil. unless spec.

(avg. rate of change)

10 years
5 years
1 year
Total Equity
3.2%
-37.93%
-41.68%
Free Cash Flow
-99.58%
-62.16%
185.43%
Net Income, GAAP
-1,846.55%
-3,572.98%
94.68%
Sales/Revenue/Turnover
0.93%
-9%
-5.84%
Total Cash Common Dividend
- -
- -
- -

Quarterly Revenue

KRW

•

in mil. unless spec.

Year

Q1
Q2
Q3
Q4
FY
2024
7,488
8,624
11,592
8,118
35,822
2025
8,819
9,166
8,688
7,056
33,729
2026
5,943
- -
- -
- -
- -

Quarterly Earnings Per Share

KRW

•

in mil. unless spec.

Year

Q1
Q2
Q3
Q4
FY
2024
-95
-65
184
-224.23
-195
2025
-300
0.01
-11.19
-74.71
-385
2026
-34.74
- -
- -
- -
- -

Quarterly Dividends Per Share

KRW

•

in mil. unless spec.

Year

Q1
Q2
Q3
Q4
FY
2024
- -
- -
- -
- -
- -
2025
- -
- -
- -
- -
- -
2026
- -
- -
- -
- -
- -

Company Description

Company Profile APIChatGPT
CEO
Seong-Moon Won
Full Time Employees
53
Sector
Electronic technology
Industry
Electronic components
Address
Inchon South Korea
IPO Date
Dec 3, 1999
Website
seoulset.co.kr
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Business
Seoul Electronics & Telecom Co., Ltd. is a South Korea-based company primarily engaged in the development, manufacturing, and distribution of electronic components, power supply systems, and original design manufacturing (ODM) solutions. The company operates primarily through two business segments: the Power Business Division and the ODM Business Division. Its product portfolio comprises linear transformers for consumer electronics, household appliances, and telecommunication equipment; industrial transformers designed for heavy machinery, marine vessels, building infrastructure, and power generation facilities; toroidal transformers engineered for precision audio systems, electronic measuring instruments, and medical devices; switching mode power supply (SMPS) units; high-frequency switching transformers; line filters for electromagnetic interference suppression; power management modules; self-service interactive kiosks; touch pads; electronic smart labels; electric vehicle (EV) charging components; and custom electronic assemblies. Seoul Electronics & Telecom serves domestic and international clients across the consumer electronics, telecommunications, industrial automation, healthcare, and automotive sectors. Founded in 1983 and headquartered in Incheon, South Korea, the company operates regional offices and manufacturing facilities supported by overseas subsidiaries in Vietnam, Malaysia, and Hong Kong. In recent developments, the company has implemented comprehensive corporate and financial restructuring programs to optimize its balance sheet and accelerate its strategic expansion into electric vehicle power components and next-generation energy solutions. Recent strategic and operational actions include the execution of a capital reduction to improve capital structure, the completion of third-party allotment share issuances to secure operating liquidity and service debt obligations, the strategic divestment of non-core equity holdings including its equity stakes in ITM Semiconductor and Genitics, and transitions in major shareholding and executive management, including the transfer of largest-shareholder status to Daon International.