HanWool Materials Science
Daily close in US$ at the latest USD/KRW close. Source: KRX via FinanceDataReader.
HanWool Materials Science makes fiber-optic transmission equipment, hardware that carries large volumes of voice and data traffic over long distances through telecommunications networks.
Listed on KOSDAQ, South Korea's tech-focused small-cap exchange, it supplies this equipment primarily to South Korean telecom carriers and to public-sector customers such as railways and local governments. Alongside its core transmission-equipment business, the company is expanding into semiconductor materials, specifically the photosensitive chemicals used in chip manufacturing.
Summary is AI-generated and may contain errors · figures from DART filings
The company's semiconductor materials expansion is built on a collaboration with JK Materials, a specialist semiconductor materials firm named in its filing.
HanWool Materials Science in five facts
What does HanWool Materials Science do?
HanWool Materials Science makes fiber-optic transmission equipment, hardware that carries large volumes of voice and data traffic over long distances through telecommunications networks.
Where is HanWool Materials Science listed and in which sector?
HanWool Materials Science (Korean name: 한울소재과학) trades under KRX code 091440 on KOSDAQ, the Korea Exchange's board for smaller and growth companies. It is classified in the Information Technology sector, Hardware & Devices.
How large is HanWool Materials Science?
Its market capitalisation was US$72M on 2026-10-21, which puts it in this site's small-cap group. US$ amounts are converted from won at 1 USD ≈ ₩1,325 (2026-10-21).
What were HanWool Materials Science's latest annual revenue and operating profit?
For fiscal year 2025, HanWool Materials Science reported revenue of US$10.1M, an operating loss of US$18.6M and a net loss of US$27.6M, per its annual report on DART (data retrieved from DART on 2026-09-17). Revenue was down 22.5% on the previous year.
Where does this data come from?
Financial statements and filings come from DART, Korea's official corporate-filing system. Share prices, market capitalisation and trading status come from KRX. Company summaries are AI-generated from the filings and may contain errors; financial figures are mapped directly from DART.
Data sources and last updated
- Filings and financial statements
- DART (dart.fss.or.kr), Korea's official corporate-filing system
- Prices, market cap, trading status
- KRX (Korea Exchange), via FinanceDataReader
- Latest annual financials
- Fiscal year 2025, data retrieved from DART on 2026-09-17
- Share price and market cap
- Close of 2026-10-21
- Currency
- US$, converted from won at 1 USD ≈ ₩1,325 (2026-10-21 close)
- Company data updated
- 2026-10-21
- Company summary
- AI-generated from filings; may contain errors. Information only, not investment advice.
- [Amended] Material event report (bonds with warrants)
HanWool Materials Science updated the terms of bonds with warrants to raise US$22.6M, about 32.3% of its market value.
Capital raise · Oct 19 - Report on large shareholdings (5% rule) (standard)Oct 13
- Report on large shareholdings (5% rule) (abbreviated)Oct 8
- Report on large shareholdings (5% rule) (abbreviated)Sep 10
- DisclosureSep 4
- [Amended] Decision to acquire shares/equity in another company (voluntary) (subsidiary)
HanWool Materials Science updated the disclosed terms of a subsidiary's acquisition of HanWool Semiconductor, now worth US$5.43M.
M&A · May 11 - [Amended] Decision to acquire shares/equity in another company (voluntary) (subsidiary)
HanWool Materials Science updated the disclosed terms of a subsidiary's acquisition of HanWool Semiconductor, now worth US$5.43M.
M&A · Apr 30 - [Amended] Decision to acquire shares/equity in another company (voluntary) (subsidiary)
HanWool Materials Science updated the disclosed terms of a subsidiary's acquisition of HanWool Semiconductor, now worth US$5.3M.
M&A · Apr 3 - [Amended] Decision to acquire shares/equity in another company (voluntary) (subsidiary)
HanWool Materials Science updated the disclosed terms of a subsidiary's acquisition of HanWool Semiconductor, now worth US$5.46M.
M&A · Mar 10 - Change of 30% or more in revenue or profit/loss structure (15% for large companies)
HanWool Materials Science reported consolidated results for FY2025: revenue of US$9.54M (−21.22% year on year), an operating loss of US$17.2M and a net loss of US$22.7M.
Earnings · Feb 27 - [Amended] Decision to acquire shares/equity in another company (voluntary) (subsidiary)
HanWool Materials Science updated the disclosed terms of a subsidiary's acquisition of HanWool Semiconductor, now worth US$5.53M.
M&A · Feb 20 - [Amended] Decision to acquire shares/equity in another company (voluntary) (subsidiary)
HanWool Materials Science updated the disclosed terms of a subsidiary's acquisition of HanWool Semiconductor, now worth US$5.53M.
M&A · Feb 4 - [Amended] Share-pledge agreement that may change the largest shareholderOwnership change · Jan 30
- [Amended] Decision to acquire shares/equity in another company (voluntary) (subsidiary)M&A · Jan 20