i3system
Daily close in US$ at the latest USD/KRW close. Source: KRX via FinanceDataReader.
i3system develops and manufactures imaging sensors that convert invisible electromagnetic energy, from X-ray through infrared wavelengths, into visible images, allowing people to see in conditions such as darkness, smoke, or bad weather.
Its products serve defence, medical, space, and general industrial customers, with military applications including night-vision surveillance and guided-weapon targeting systems. Listed on KOSDAQ, Korea's tech-focused small-cap exchange, the company describes itself as the sole domestic supplier capable of developing and mass-producing cooled infrared imaging sensors for military use, making that product line the core of its business.
Summary is AI-generated and may contain errors · figures from DART filings
The company states it is the only Korean supplier able to develop and mass-produce military-grade cooled infrared imaging sensors, giving it a unique position in Korea's domestic defence supply chain.
i3system in five facts
What does i3system do?
i3system develops and manufactures imaging sensors that convert invisible electromagnetic energy, from X-ray through infrared wavelengths, into visible images, allowing people to see in conditions such as darkness, smoke, or bad weather.
Where is i3system listed and in which sector?
i3system (Korean name: 아이쓰리시스템) trades under KRX code 214430 on KOSDAQ, the Korea Exchange's board for smaller and growth companies. It is classified in the Information Technology sector, Components.
How large is i3system?
Its market capitalisation was US$365.1M on 2026-10-21, which puts it in this site's small-cap group. US$ amounts are converted from won at 1 USD ≈ ₩1,325 (2026-10-21).
What were i3system's latest annual revenue and operating profit?
For fiscal year 2025, i3system reported revenue of US$93.8M, operating profit of US$12.4M and net income of US$14.2M, per its annual report on DART (data retrieved from DART on 2026-06-04). Revenue was up 3.0% on the previous year.
Where does this data come from?
Financial statements and filings come from DART, Korea's official corporate-filing system. Share prices, market capitalisation and trading status come from KRX. Company summaries are AI-generated from the filings and may contain errors; financial figures are mapped directly from DART.
Data sources and last updated
- Filings and financial statements
- DART (dart.fss.or.kr), Korea's official corporate-filing system
- Prices, market cap, trading status
- KRX (Korea Exchange), via FinanceDataReader
- Latest annual financials
- Fiscal year 2025, data retrieved from DART on 2026-06-04
- Share price and market cap
- Close of 2026-10-21
- Currency
- US$, 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
i3system updated a previously disclosed supply contract with LIG Nex1, now worth US$9.26M, about 10.3% of its recent annual revenue, running through Oct 2026.
Supply contract · Oct 8 - Supply contract signed
i3system disclosed a supply contract, worth US$45.4M, about 49.74% of its recent annual revenue, running through Sep 2029.
Supply contract · Oct 1 - [Amended] Supply contract signed
i3system updated a previously disclosed supply contract with LIG Defense & Aerospace Co., Ltd., now worth US$11.9M, about 13.6% of its recent annual revenue, running through Oct 2026.
Supply contract · Aug 28 - Operating results (preliminary) (fair disclosure)
i3system filed provisional (unaudited) separate results for Q2 2026: revenue of US$27.6M (+56% year on year), operating profit of US$3.33M (+79.9% year on year) and net income of US$2.68M (−17.6% year on year).
Earnings · Aug 4 - Operating results (preliminary) (fair disclosure)
i3system filed provisional (unaudited) separate results for Q1 2026: revenue of US$22.3M (−15.1% year on year), operating profit of US$3.01M (−24.4% year on year) and net income of US$3.36M (−13.1% year on year).
Earnings · May 7 - Cash/in-kind dividend decision
i3system declared a cash dividend of US$0.30 per share, equal to about 0.58% of the recent share price.
Dividend · Mar 6 - Operating results (preliminary) (fair disclosure)
i3system filed provisional (unaudited) separate results for Q4 2025: revenue of US$19.6M (−4.9% year on year), operating profit of US$2.62M (+2.3% year on year) and net income of US$3.56M (+19.1% year on year).
Earnings · Mar 3