HanWool Materials Science, Inc.

HanWool Materials Science, Inc.

KKRX:091440
2,405.00
KRW
-90.00
(-3.61%)
-1,116.52EPS
89.83BMarket 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
4,491.53
6,894.46
5,889.53
6,735.35
7,095.75
4,094.17
6,806.51
4,693.91
4,050.71
2,544.01
3,857.71
1,233.28
517.95
414.95
Basic EPS, GAAP
52
349
122
-412
99
-1,672
572
-800
-742
-1,647
-586
-1,392
-1,302
-1,050.59
Free Cash Flow per Basic Share
-537.89
-939.5
717.17
-269.1
-166.64
-832.59
-69.92
1,481.83
-820.3
-707.02
-424.54
-1,984.59
-1,696.73
-1,153.82
Dividend per Share
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
Book Value per Share
3,777.02
4,126.32
4,237.55
3,825.77
3,911.13
2,605.41
3,163.76
2,389.18
1,654.22
1,709.18
1,578.62
2,353.74
1,081.73
997.49
Tangible Book Value per Share
2,676.59
3,357.66
3,713.12
3,037.08
2,937.87
1,934.62
2,697.52
2,006.84
1,189.26
1,567.35
1,523.44
1,292.31
586.54
503.92
Basic Weighted Avg Shares
6
6
6
6
5
7
8
9
9
9
10
14
26
29
Sales/Revenue/Turnover
28,038
43,608
37,424
43,099
37,433
30,226
56,539
40,001
34,591
23,046
37,597
17,339
13,435
11,986
Operating Margin (%)
2.15
6.63
2.38
-3.92
2.39
-35.96
10.06
-14.39
-13.8
-40.6
-10.78
-74.67
-183.71
-180.14
Depreciation Expense
1,980
2,543
1,884
1,573
1,871
2,113
2,220
1,895
1,933
1,903
1,721
1,649
2,492
2,531
Net Income, GAAP
325
2,207
775
-2,636
522
-12,344
4,751
-6,818
-6,336
-14,920
-5,711
-19,570
-33,773
-30,348
Effective Tax Rate (%)
- -
2.11
- -
- -
36.33
- -
- -
- -
- -
- -
- -
- -
- -
- -
Profit Margin (%)
1.16
5.06
2.07
-6.12
1.4
-40.84
8.4
-17.04
-18.32
-64.74
-15.19
-112.87
-251.38
-253.19
Working Capital
13,884
22,231
24,133
18,928
15,332
20,380
13,462
17,947
8,550
-2,201
14,333
17,701
-20,920
-59,549
LT Debt
2,373
6,345
5,818
6,442
4,942
9,635
691
7,837
6,787
2,336
4,601
55,225
38,036
6,373
Total Equity
23,870
26,077
27,130
24,896
25,573
22,343
27,217
20,727
14,162
16,849
22,345
47,833
36,580
33,586
Return on Invested Capital (%)
- -
8.14
- -
- -
1.34
- -
- -
- -
- -
- -
- -
- -
- -
- -
Return on Capital (%)
- -
7.14
- -
- -
1.95
- -
- -
- -
- -
- -
- -
- -
- -
- -
Return on Common Equity (%)
1.37
8.84
2.91
-10.21
2.11
-52.2
19.28
-28.63
-36.35
-96.85
-29.61
-61.34
-89.37
-76.85

Capital Structure

KRW

•

in mil. unless spec.
Sep'25
Dec'25
Mar'26
ST Debt
21,289
35,588
69,462
LT Borrowings
37,405
36,621
5,000
LT Finance Leases
1,308
1,415
1,373
Preferred Equity and Hybrid Capital
- -
- -
- -
Shares Outstanding
28
31
31
Market Capitalization
68,693
91,856
89,825

Working Capital

KRW

•

in mil. unless spec.
Sep'25
Dec'25
Mar'26
Total Current Assets
18,883
24,635
18,606
Cash, Cash Equivalents & STI
2,046
6,764
4,574
Accounts Receivable, Net
1,150
2,927
519
Inventories
14,865
9,828
10,260
Total Current Liabilities
29,052
45,555
78,156
Payables & Accruals
- -
- -
- -
ST Debt
21,289
35,588
69,462
Deferred Revenue
- -
- -
- -

Growth Rates

KRW

•

in mil. unless spec.

(avg. rate of change)

10 years
5 years
1 year
Total Equity
9.03%
22.09%
-23.53%
Free Cash Flow
-151.98%
86.53%
57.74%
Net Income, GAAP
-302.34%
76.38%
72.57%
Sales/Revenue/Turnover
-1.96%
-12.03%
-22.51%
Total Cash Common Dividend
- -
- -
- -

Quarterly Revenue

KRW

•

in mil. unless spec.

Year

Q1
Q2
Q3
Q4
FY
2024
2,071
3,667
3,732
7,869
17,339
2025
2,977
1,643
2,893
5,923
13,435
2026
1,528
- -
- -
- -
- -

Quarterly Earnings Per Share

KRW

•

in mil. unless spec.

Year

Q1
Q2
Q3
Q4
FY
2024
-215.45
-628
-285
-266.95
-1,392
2025
-397.99
-265.87
-187.21
-442.9
-1,302
2026
-150.52
- -
- -
- -
- -

Quarterly Dividends Per Share

KRW

•

in mil. unless spec.

Year

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

Company Description

Full Time Employees
52
Sector
Electronic technology
Industry
Computer peripherals
Address
Hwaseong-si South Korea
IPO Date
Feb 1, 2008
Business
HanWool Materials Science, Inc. is a South Korea-based technology company primarily engaged in the research, development, manufacturing, and commercialization of optical transmission equipment, carrier network infrastructure, and advanced semiconductor and display materials. Founded in 2000 and headquartered in Seongnam-si, Gyeonggi-do, South Korea, the company operates across two core business segments: Telecommunications and Advanced Materials. The company's Telecommunications segment provides comprehensive network equipment and infrastructure solutions, including: Multi-Service Provisioning Platforms (MSPP); Packet Transport Networks (PTN) and Packet Optical Transport Networks (POTN); Carrier Ethernet switches; optical channel subscriber multiplexers; digital cross-connect systems (DCS); dedicated optical leased-line transmission devices; front-haul and backhaul transmission systems for 5G and next-generation 6G cellular networks; and quantum cryptography communication equipment. In addition to hardware manufacturing, the company provides turnkey network construction, systems integration, and maintenance services to domestic telecommunications carriers, transportation authorities such as the Korea National Railway, public sector enterprises, financial institutions, and military organizations throughout South Korea. The Advanced Materials segment, operated primarily through subsidiaries including JK Materials and Hanwool Semiconductor, specializes in high-performance specialty chemicals and electronic materials, including: photosensitive materials (PSM) and photoresist chemical agents for semiconductor photolithography patterning; packaging and dielectric materials for high bandwidth memory (HBM) applications, such as photosensitive polyimide (PSPI) and polybenzoxazole (PBO); bottom anti-reflective coating (BARC) formulations; spin-on hardmask (SOH) materials; lanthanum oxide and rare-earth compounds for advanced microelectronics; and thin-film materials for organic light-emitting diode (OLED) displays. In recent developments, the company executed a strategic transformation and corporate rebranding in January 2024, changing its name from Telefield Inc. to HanWool Materials Science, Inc. to mark its expansion from legacy telecommunications equipment into high-value semiconductor and electronic materials. Following an ownership and management transition, the company reinforced its materials capabilities by acquiring secondary equity stakes in Hanwool Semiconductor and expanding operations at its subsidiary JK Materials, which secured regulatory process safety management approvals to initiate commercial mass production of semiconductor and display photosensitive materials. Additionally, the company broadened its secure communications portfolio through a technology transfer agreement with the Korea Institute of Science and Technology Information (KISTI) to integrate hybrid quantum cryptographic security protocols into its optical network infrastructure systems.