GST
Daily close in US$ at the latest USD/KRW close. Source: KRX via FinanceDataReader.
GST makes two types of equipment used in semiconductor and display manufacturing: scrubbers, which clean harmful gases emitted during production, and chillers, which regulate temperature to keep manufacturing processes running efficiently.
Its customers are chipmakers and display panel producers that need this environmental and process-control equipment on their factory floors. Listed on KOSDAQ, Korea's tech-focused small-cap exchange, GST earns the large majority of its revenue from product sales, primarily scrubbers and chillers, with the remainder coming from maintenance services and traded goods.
Summary is AI-generated and may contain errors · figures from DART filings
GST has eleven subsidiaries and four associates, all unlisted, including EST, a majority-owned subsidiary that produces semiconductor equipment parts and cold-chain systems.
GST in five facts
What does GST do?
GST makes two types of equipment used in semiconductor and display manufacturing: scrubbers, which clean harmful gases emitted during production, and chillers, which regulate temperature to keep manufacturing processes running efficiently.
Where is GST listed and in which sector?
GST (Korean name: GST) trades under KRX code 083450 on KOSDAQ, the Korea Exchange's board for smaller and growth companies. It is classified in the Industrials sector, Machinery.
How large is GST?
Its market capitalisation was US$615.5M on 2026-10-21, which puts it in this site's small-cap group. US$ amounts are converted from won at 1 USD ≈ ₩1,325 (2026-10-21).
What were GST's latest annual revenue and operating profit?
For fiscal year 2025, GST reported revenue of US$262M, operating profit of US$44.7M and net income of US$34.4M, per its annual report on DART (data retrieved from DART on 2026-09-17). Revenue was up 0.3% on the previous year.
Where does this data come from?
Financial statements and filings come from DART, Korea's official corporate-filing system. Share prices, market capitalisation and trading status come from KRX. Company summaries are AI-generated from the filings and may contain errors; financial figures are mapped directly from DART.
Data sources and last updated
- Filings and financial statements
- DART (dart.fss.or.kr), Korea's official corporate-filing system
- Prices, market cap, trading status
- KRX (Korea Exchange), via FinanceDataReader
- Latest annual financials
- Fiscal year 2025, data retrieved from DART on 2026-09-17
- Share price and market cap
- Close of 2026-10-21
- Currency
- US$, 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.
- Treasury share disposal: results reportTreasury Shares · Oct 13
- Report on securities held by executives/major shareholdersOct 12
- Report on securities held by executives/major shareholdersOct 12
- Report on securities held by executives/major shareholdersOct 12
- Report on securities held by executives/major shareholdersOct 12
- Report on securities held by executives/major shareholdersOct 12
- Report on securities held by executives/major shareholdersOct 12
- Report on securities held by executives/major shareholdersOct 12
- Report on large shareholdings (5% rule) (abbreviated)Oct 12
- Material event report (treasury share disposal)
GST disclosed a plan to sell treasury shares worth US$807K, about 0.1% of its market value.
Treasury Shares · Oct 1 - Cash/in-kind dividend decision
GST declared a cash dividend of US$0.44 per share.
Dividend · Feb 9 - Treasury share disposal: results reportTreasury Shares · Jan 6