(주)티에스이 · KOSDAQ: 131290 · Medical, precision and optical instruments
| KRW | FY2023 | FY2024 | FY2025 |
|---|---|---|---|
| Revenue | ₩249.1B | ₩348.1B | ₩428.9B |
| Operating income | −₩2.4B | ₩39.9B | ₩49.2B |
| Net income | −₩2.1B | ₩45.0B | ₩40.0B |
| Total assets | ₩443.1B | ₩519.4B | ₩608.0B |
| Total liabilities | ₩95.3B | ₩119.7B | ₩143.5B |
| Total equity | ₩347.8B | ₩399.7B | ₩464.6B |
| Share capital | ₩22.7B | ₩22.7B | ₩22.7B |
Consolidated statements · FY2025 operating margin 11.5% · liabilities to equity 31% · Annual report FY2025 (Korean original)
| Period | Auditor | Opinion |
|---|---|---|
| Term 31 (current) | 한미회계법인 | Unqualified |
| Term 30 (prior) | 한미회계법인 | Unqualified |
| Term 29 (two years prior) | 삼일회계법인 | Unqualified |
No change history reported in the latest annual report.
| Date | Filing | Original |
|---|---|---|
| 2026-09-14 | Large shareholding (5%+) report | DART |
| 2026-09-02 | Investor relations event | DART |
| 2026-08-14 | Half-year report (2026.06) | DART |
| 2026-07-22 | Securities issuance results (voluntary) | DART |
| 2026-07-10 | Material event report — Convertible bond issuance decision | DART |
| 2026-07-01 | Large shareholding (5%+) report | DART |
| 2026-06-26 | Investor relations event | DART |
| 2026-05-15 | Quarterly report (2026.03) | DART |
| 2026-05-11 | Large shareholding (5%+) report | DART |
| 2026-05-11 | Officer / major shareholder ownership report | DART |
| 2026-04-30 | Officer / major shareholder ownership report | DART |
| 2026-04-09 | Large shareholding (5%+) report | DART |
| 2026-03-26 | Annual general meeting results | DART |
| 2026-03-18 | Annual report (2025.12) | DART |
| 2026-03-18 | Audit report submitted | DART |
| 2026-03-10 | Officer / major shareholder ownership report | DART |
| 2026-03-05 | Amended: Proxy solicitation reference document | DART |
| 2026-03-05 | Proxy solicitation reference document | DART |
| 2026-03-05 | Notice of shareholders meeting | DART |
| 2026-03-05 | Resolution to convene shareholders meeting | DART |
Showing the 20 most recent of 34 filings. The full brief lists all of them.
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Data generated 2026-09-16 from OpenDART.
This page summarizes public filings from DART, the official electronic disclosure system of Korea. It is not investment, credit or legal advice. Figures are shown in the currency the company reports in. Titles and labels are machine-translated and may contain errors — always check the linked original filing. Source: OpenDART, Financial Supervisory Service, Korea.