TSI
Daily close in US$ at the latest USD/KRW close. Source: KRX via FinanceDataReader.
TSI makes the industrial mixing machines used in rechargeable battery manufacturing, specifically the equipment that blends the active materials, conductive agents, binders, and solvents needed to produce battery electrodes.
Battery makers are its primary customers, placing TSI in the upstream equipment layer of the rechargeable-battery supply chain. Listed on KOSDAQ, Korea's tech and small-cap board, the company earns the vast majority of its revenue from its mixing systems and related fabricated mixing products, which together account for nearly all consolidated sales.
Summary is AI-generated and may contain errors · figures from DART filings
TSI in five facts
What does TSI do?
TSI makes the industrial mixing machines used in rechargeable battery manufacturing, specifically the equipment that blends the active materials, conductive agents, binders, and solvents needed to produce battery electrodes.
Where is TSI listed and in which sector?
TSI (Korean name: 티에스아이) trades under KRX code 277880 on KOSDAQ, the Korea Exchange's board for smaller and growth companies. It is classified in the Industrials sector, Machinery.
How large is TSI?
Its market capitalisation was US$52.9M on 2026-10-21, which puts it in this site's small-cap group. US$ amounts are converted from won at 1 USD ≈ ₩1,325 (2026-10-21).
What were TSI's latest annual revenue and operating profit?
For fiscal year 2025, TSI reported revenue of US$199.7M, operating profit of US$6.2M and net income of US$2.9M, per its annual report on DART (data retrieved from DART on 2026-06-03). Revenue was down 2.7% on the previous year.
Where does this data come from?
Financial statements and filings come from DART, Korea's official corporate-filing system. Share prices, market capitalisation and trading status come from KRX. Company summaries are AI-generated from the filings and may contain errors; financial figures are mapped directly from DART.
Data sources and last updated
- Filings and financial statements
- DART (dart.fss.or.kr), Korea's official corporate-filing system
- Prices, market cap, trading status
- KRX (Korea Exchange), via FinanceDataReader
- Latest annual financials
- Fiscal year 2025, data retrieved from DART on 2026-06-03
- Share price and market cap
- Close of 2026-10-21
- Currency
- US$, 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
TSI updated a previously disclosed supply contract, now worth US$24.2M, about 21.6% of its recent annual revenue, running through Jan 2027.
Supply contract · Oct 20 - [Amended] Supply contract signed
TSI updated a previously disclosed supply contract, now worth US$20.5M, about 10.1% of its recent annual revenue, running through Dec 2026.
Supply contract · Oct 2 - [Amended] Supply contract signed
TSI updated a previously disclosed supply contract, now worth US$17.8M, about 35.8% of its recent annual revenue, running through Dec 2026.
Supply contract · Sep 30 - [Amended] Supply contract signed
TSI updated a previously disclosed supply contract, now worth US$25.3M, about 13.1% of its recent annual revenue, running through Dec 2026.
Supply contract · Sep 30 - [Amended] Supply contract signed
TSI updated a previously disclosed supply contract, now worth US$24.2M, about 21.98% of its recent annual revenue, running through Feb 2027.
Supply contract · Sep 29 - [Amended] Supply contract signed
TSI updated a previously disclosed supply contract with RJC Holdings Co., Ltd., now worth US$5.46M, about 11.03% of its recent annual revenue, running through Sep 2026.
Supply contract · Sep 28 - [Amended] Grant of stock optionsSep 15
- [Amended] Supply contract signed
TSI updated a previously disclosed supply contract, now worth US$21M, about 10.4% of its recent annual revenue, running through Dec 2026.
Supply contract · Sep 10 - Supply contract signed (voluntary)
TSI disclosed a supply contract with DJK (DAIICHI JITSUGYO CO., LTD.), worth US$17.8M, about 9.12% of its recent annual revenue, running through May 2028.
Supply contract · Sep 3 - [Amended] Supply contract signed
TSI updated a previously disclosed supply contract, now worth US$23.4M, about 21.86% of its recent annual revenue, running through Nov 2026.
Supply contract · Aug 21 · 5 versions - [Amended] Supply contract signed
TSI updated a previously disclosed supply contract, now worth US$22.7M, about 21.6% of its recent annual revenue, running through Oct 2026.
Supply contract · Aug 14 - [Amended] Supply contract signed
TSI updated a previously disclosed supply contract, now worth US$24.1M, about 13.1% of its recent annual revenue, running through Sep 2026.
Supply contract · Jul 31 - [Amended] Supply contract signed
TSI updated a previously disclosed supply contract with LG Energy Solution Michigan Inc., now worth US$3.76M, about 3.76% of its recent annual revenue, running through Jul 2026.
Supply contract · Jul 14 - [Amended] Supply contract signed
TSI updated a previously disclosed supply contract, now worth US$10.1M, about 23.25% of its recent annual revenue, running through Nov 2026.
Supply contract · Jun 30 - [Amended] Supply contract signed
TSI updated a previously disclosed supply contract with LG Energy Solution Michigan Inc., now worth US$20.3M, about 21.01% of its recent annual revenue, running through Jun 2026.
Supply contract · Jun 29 - [Amended] Supply contract signed
TSI updated a previously disclosed supply contract with RJC Holdings Co., Ltd., now worth US$6.02M, about 13.78% of its recent annual revenue, running through Sep 2026.
Supply contract · Jun 29 - [Amended] Supply contract signed
TSI updated a previously disclosed supply contract, now worth US$22.2M, about 13.1% of its recent annual revenue, running through Jul 2026.
Supply contract · Jun 26 - [Amended] Supply contract signedSupply contract · Jun 23
- [Amended] Supply contract signed
TSI updated a previously disclosed supply contract, now worth US$18.6M, about 10.1% of its recent annual revenue, running through Oct 2026.
Supply contract · Apr 16 - [Amended] Supply contract signed
TSI updated a previously disclosed supply contract, now worth US$20.7M, about 21.01% of its recent annual revenue, running through Jun 2026.
Supply contract · Mar 27 - [Amended] Cash/in-kind dividend decision
TSI updated its declared cash dividend.
Dividend · Mar 16 · 2 versions - Supply contract signed
TSI disclosed a supply contract, worth US$19.9M, about 10.73% of its recent annual revenue, running through Feb 2027.
Supply contract · Mar 10 - [Amended] Supply contract signedSupply contract · Mar 5
- [Amended] Supply contract signed
TSI updated a previously disclosed supply contract, now worth US$16.2M, about 35.8% of its recent annual revenue, running through Sep 2026.
Supply contract · Mar 4 - [Amended] Supply contract signed
TSI updated a previously disclosed supply contract, now worth US$22.8M, about 12.6% of its recent annual revenue, running through Jun 2026.
Supply contract · Feb 25 - [Amended] Supply contract signed
TSI updated a previously disclosed supply contract, now worth US$22.6M, about 21.86% of its recent annual revenue, running through May 2026.
Supply contract · Feb 25 - [Amended] Supply contract signed
TSI updated a previously disclosed supply contract with Automotive Cells Company, now worth US$38.7M, about 37.51% of its recent annual revenue, running through Jun 2027.
Supply contract · Feb 24 - Change of 30% or more in revenue or profit/loss structure (15% for large companies)
TSI reported consolidated results for FY2025: revenue of US$185M (−0.1% year on year), operating profit of US$7.24M (−31.9% year on year) and net income of US$3.93M (−80.3% year on year).
Earnings · Feb 6 - [Amended] Material event report (treasury share acquisition)Treasury Shares · Feb 2
- [Amended] Material event report (treasury share acquisition)Treasury Shares · Feb 2
- [Amended] Supply contract signedSupply contract · Jan 30
- [Amended] Supply contract signedSupply contract · Jan 30
- Treasury share acquisition: results reportTreasury Shares · Jan 30
- [Amended] Supply contract signedSupply contract · Jan 28
- Material event report (treasury share acquisition)Treasury Shares · Jan 15
