3S
Daily close in US$ at the latest USD/KRW close. Source: KRX via FinanceDataReader.
3S makes specialized plastic transport boxes used to carry silicon wafers, the thin, fragile discs that serve as the base material for semiconductor chips, safely between wafer producers and chip manufacturers.
Its products sit at an early, critical point in the semiconductor supply chain, supplying wafer makers and chipmakers who require contamination-free handling. Listed on KOSDAQ, Korea's tech-focused small-cap board, 3S also supplies environmental testing equipment and recently added factory-automation logistics systems as a third business line.
Summary is AI-generated and may contain errors · figures from DART filings
3S states it is the only Korean producer of FOSB wafer-shipping boxes, with a subsidiary, Shanghai Sames, conducting the environmental-testing equipment business in China.
3S in five facts
What does 3S do?
3S makes specialized plastic transport boxes used to carry silicon wafers, the thin, fragile discs that serve as the base material for semiconductor chips, safely between wafer producers and chip manufacturers.
Where is 3S listed and in which sector?
3S (Korean name: 3S) trades under KRX code 060310 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 3S?
Its market capitalisation was US$53.9M on 2026-10-21, which puts it in this site's small-cap group. US$ amounts are converted from won at 1 USD ≈ ₩1,325 (2026-10-21).
What were 3S's latest annual revenue and operating profit?
For fiscal year 2025, 3S reported revenue of US$21.9M, an operating loss of US$4.4M and a net loss of US$7.6M, per its annual report on DART (data retrieved from DART on 2026-09-17). Revenue was down 33.4% on the previous year.
Where does this data come from?
Financial statements and filings come from DART, Korea's official corporate-filing system. Share prices, market capitalisation and trading status come from KRX. Company summaries are AI-generated from the filings and may contain errors; financial figures are mapped directly from DART.
Data sources and last updated
- Filings and financial statements
- DART (dart.fss.or.kr), Korea's official corporate-filing system
- Prices, market cap, trading status
- KRX (Korea Exchange), via FinanceDataReader
- Latest annual financials
- Fiscal year 2025, data retrieved from DART on 2026-09-17
- Share price and market cap
- Close of 2026-10-21
- Currency
- US$, 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.
- Proxy solicitation reference documentOct 19
- Notice of general shareholders' meetingOct 19
- [Amended] Supply contract signed (voluntary)
3S updated a previously disclosed supply contract with SILICON BOX Pte., Ltd., now worth US$1.39M, about 6.93% of its recent annual revenue, running through Sep 2026.
Supply contract · Sep 30 - Conversion price adjustmentSep 17
- Shareholder register closure / record date setSep 14
- DisclosureSep 14
- Resolution to convene a general shareholders' meeting (extraordinary meeting)Sep 14
- Report on securities held by executives/major shareholdersSep 3
- [Amended] Change of 30% or more in revenue or profit/loss structure (15% for large companies)
3S updated its previously filed consolidated results for the fiscal year ended Mar 2026: revenue of US$18.6M (−2.1% year on year), an operating loss of US$3.35M and a net loss of US$3.59M.
Earnings · Jun 10 - Change of 30% or more in revenue or profit/loss structure (15% for large companies)
3S reported consolidated results for the fiscal year ended Mar 2026: revenue of US$18.9M (−2.1% year on year), an operating loss of US$3.4M and a net loss of US$4M.
Earnings · May 27