Senko
Daily close in US$ at the latest USD/KRW close. Source: KRX via FinanceDataReader.
Senko makes sensors and instruments that detect gas leaks and measure air quality, helping keep industrial sites and indoor environments safe.
Its products, ranging from electrochemical gas sensors and fine-dust sensors to portable and fixed gas-safety devices and real-time odor and air-quality monitors, are used across industrial facilities and environmental monitoring applications. Listed on KOSDAQ, Korea's tech-focused small-cap board, the company earns the majority of its revenue from its sensor-device segment, with environmental measurement systems and integrated management solutions making up most of the remainder.
Summary is AI-generated and may contain errors · figures from DART filings
Senko describes itself as the only domestic Korean company providing comprehensive gas-safety solutions across diverse industrial settings, and it holds two unlisted subsidiaries.
Senko in five facts
What does Senko do?
Senko makes sensors and instruments that detect gas leaks and measure air quality, helping keep industrial sites and indoor environments safe.
Where is Senko listed and in which sector?
Senko (Korean name: 센코) trades under KRX code 347000 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 Senko?
Its market capitalisation was US$50.7M on 2026-10-21, which puts it in this site's small-cap group. US$ amounts are converted from won at 1 USD ≈ ₩1,325 (2026-10-21).
What were Senko's latest annual revenue and operating profit?
For fiscal year 2025, Senko reported revenue of US$27.7M, operating profit of US$1.9M and net income of US$3.6M, per its annual report on DART (data retrieved from DART on 2026-06-03). Revenue was up 2.4% on the previous year.
Where does this data come from?
Financial statements and filings come from DART, Korea's official corporate-filing system. Share prices, market capitalisation and trading status come from KRX. Company summaries are AI-generated from the filings and may contain errors; financial figures are mapped directly from DART.
Data sources and last updated
- Filings and financial statements
- DART (dart.fss.or.kr), Korea's official corporate-filing system
- Prices, market cap, trading status
- KRX (Korea Exchange), via FinanceDataReader
- Latest annual financials
- Fiscal year 2025, data retrieved from DART on 2026-06-03
- Share price and market cap
- Close of 2026-10-21
- Currency
- US$, 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] Supply contract signed (voluntary)
Senko updated a previously disclosed supply contract with LG Uplus, now worth US$1.62M, about 9.06% of its recent annual revenue, running through Jul 2026.
Supply contract · Jun 22 - [Amended] Supply contract signed (voluntary)
Senko updated a previously disclosed supply contract with LG Uplus, now worth US$1.66M, about 9.06% of its recent annual revenue, running through Jun 2026.
Supply contract · May 19 - [Amended] Supply contract signed (voluntary)
Senko updated a previously disclosed supply contract with LG Uplus, now worth US$1.7M, about 9.06% of its recent annual revenue, running through May 2026.
Supply contract · Apr 30 - Change of 30% or more in revenue or profit/loss structure (15% for large companies)
Senko reported consolidated results for FY2025: revenue of US$25.5M (+2.4% year on year), operating profit of US$1.74M (−7.8% year on year) and net income of US$3.27M (+86.3% year on year).
Earnings · Feb 19