Woojin
Daily close in US$ at the latest USD/KRW close. Source: KRX via FinanceDataReader.
Woojin makes industrial measurement instruments, devices that read temperature, chemical composition, and other physical conditions in demanding environments such as steelmaking furnaces and nuclear power plants.
Its customers include steel producers, semiconductor manufacturers, and power-generation operators. Listed on KOSPI, Korea's main stock exchange, the company's core business today centres on instrumentation for nuclear power plants, with additional product lines covering temperature sensors for semiconductors and industrial use, steel-industry automation equipment, and facility-diagnostics systems.
Summary is AI-generated and may contain errors · figures from DART filings
Woojin established what it describes as Korea's first dedicated instrumentation research institute, reflecting a long-standing focus on standardising and localising industrial measurement technology.
Woojin in five facts
What does Woojin do?
Woojin makes industrial measurement instruments, devices that read temperature, chemical composition, and other physical conditions in demanding environments such as steelmaking furnaces and nuclear power plants.
Where is Woojin listed and in which sector?
Woojin (Korean name: 우진) trades under KRX code 105840 on KOSPI, the main board of the Korea Exchange. It is classified in the Information Technology sector, Hardware & Devices.
How large is Woojin?
Its market capitalisation was US$163.1M on 2026-10-21, which puts it in this site's small-cap group. US$ amounts are converted from won at 1 USD ≈ ₩1,325 (2026-10-21).
What were Woojin's latest annual revenue and operating profit?
For fiscal year 2025, Woojin reported revenue of US$113.5M, operating profit of US$10.7M and net income of US$8.3M, per its annual report on DART (data retrieved from DART on 2026-09-17). Revenue was up 6.9% on the previous year.
Where does this data come from?
Financial statements and filings come from DART, Korea's official corporate-filing system. Share prices, market capitalisation and trading status come from KRX. Company summaries are AI-generated from the filings and may contain errors; financial figures are mapped directly from DART.
Data sources and last updated
- Filings and financial statements
- DART (dart.fss.or.kr), Korea's official corporate-filing system
- Prices, market cap, trading status
- KRX (Korea Exchange), via FinanceDataReader
- Latest annual financials
- Fiscal year 2025, data retrieved from DART on 2026-09-17
- Share price and market cap
- Close of 2026-10-21
- Currency
- US$, 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.
- Report on large shareholdings (5% rule) (standard)Oct 14
- Report on large shareholdings (5% rule) (standard)Sep 30
- [Amended] Supply contract signed
Woojin updated a previously disclosed supply contract with Doosan Enerbility, now worth US$4.78M, about 5.3% of its recent annual revenue, running through Nov 2030.
Supply contract · Sep 21 - [Amended] Supply contract signed
Woojin updated a previously disclosed supply contract with Doosan Enerbility, now worth US$11.1M, about 10.92% of its recent annual revenue, running through Sep 2029.
Supply contract · Sep 17 - [Amended] Supply contract signed (voluntary)
Woojin updated a previously disclosed supply contract with Doosan Enerbility, now worth US$4.76M, about 5.09% of its recent annual revenue, running through May 2029.
Supply contract · Sep 17 - Report on large shareholdings (5% rule) (standard)Sep 17
- Share cancellation decisionSep 14
- Supply contract signed
Woojin disclosed a supply contract with Korea Hydro & Nuclear Power, worth US$7.17M, about 7.27% of its recent annual revenue, running through Oct 2027.
Supply contract · Jun 17 - Cash/in-kind dividend decision
Woojin declared a cash dividend of US$0.07 per share, equal to about 0.5% of the recent share price.
Dividend · Jun 8 - [Amended] Supply contract signed
Woojin updated a previously disclosed supply contract with Korea Hydro & Nuclear Power, now worth US$6.88M, about 7.31% of its recent annual revenue, running through Nov 2026.
Supply contract · May 28 - Supply contract signed
Woojin disclosed a supply contract with Korea Hydro & Nuclear Power, worth US$7.57M, about 8.06% of its recent annual revenue, running through Dec 2026.
Supply contract · Mar 25 - [Amended] Supply contract signed
Woojin updated a previously disclosed supply contract with Korea Hydro & Nuclear Power, now worth US$6.91M, about 7.31% of its recent annual revenue, running through Nov 2026.
Supply contract · Mar 20 - [Amended] Cash/in-kind dividend decision
Woojin updated its declared cash dividend of US$0.14 per share, equal to about 0.7% of the recent share price.
Dividend · Mar 3 · 2 versions - Supply contract signed
Woojin disclosed a supply contract with Korea Hydro & Nuclear Power, worth US$6.19M, about 6.27% of its recent annual revenue, running through Mar 2027.
Supply contract · Feb 26 - Change of 30% or more in revenue or profit/loss structure (15% for large companies)
Woojin reported consolidated results for FY2025: revenue of US$103M (+6.9% year on year), operating profit of US$9.7M (−12% year on year) and net income of US$6.56M (−42.8% year on year).
Earnings · Feb 9 - [Amended] Supply contract signedSupply contract · Jan 22