(주)디오 · KOSDAQ: 039840 · Medical, precision and optical instruments
No rule-based items found in the latest annual report or the last 12 months of filings. This is a limited automated check, not a clean bill of health.
| KRW | FY2023 | FY2024 | FY2025 |
|---|---|---|---|
| Revenue | ₩155.8B | ₩119.6B | ₩164.1B |
| Operating income | ₩20.9B | −₩40.7B | ₩10.1B |
| Net income | ₩2.6B | −₩41.3B | −₩1.4B |
| Total assets | ₩367.6B | ₩343.3B | ₩328.5B |
| Total liabilities | ₩173.2B | ₩139.2B | ₩136.8B |
| Total equity | ₩194.4B | ₩204.1B | ₩191.7B |
| Share capital | ₩7.9B | ₩7.9B | ₩7.9B |
Consolidated statements · FY2025 operating margin 6.2% · liabilities to equity 71% · Annual report FY2025 (Korean original)
| Period | Auditor | Opinion |
|---|---|---|
| Term 38 (current) | 대주회계법인 | Unqualified |
| Term 37 (prior) | 대주회계법인 | Unqualified |
| Term 36 (two years prior) | 대주회계법인 | Unqualified |
| Date | Largest shareholder (Korean) | Stake | Cause (Korean) |
|---|---|---|---|
| 2018년 03월 28일 | 디오홀딩스(유)외 4인 | — | 최대주주와의 주식 양수도 계약 |
| Date | Filing | Original |
|---|---|---|
| 2026-09-03 | Treasury share trust termination results | DART |
| 2026-08-27 | Extraordinary shareholders meeting results | DART |
| 2026-08-14 | Proxy solicitation reference document | DART |
| 2026-08-13 | Half-year report (2026.06) | DART |
| 2026-08-11 | Notice of shareholders meeting | DART |
| 2026-07-16 | Resolution to convene shareholders meeting | DART |
| 2026-07-16 | Record date / shareholder register closure set | DART |
| 2026-06-04 | Treasury share trust acquisition status report | DART |
| 2026-06-04 | Investor relations event | DART |
| 2026-05-18 | Officer / major shareholder ownership report | DART |
| 2026-05-18 | Officer / major shareholder ownership report | DART |
| 2026-05-18 | Treasury share disposal results report | DART |
| 2026-05-13 | Quarterly report (2026.03) | DART |
| 2026-04-30 | Material event report — Treasury share disposal decision | DART |
| 2026-04-16 | Preliminary consolidated operating results (fair disclosure) | DART |
| 2026-04-02 | Large shareholding (5%+) report | DART |
| 2026-03-24 | Annual general meeting results | DART |
| 2026-03-09 | Notice of shareholders meeting | DART |
| 2026-03-09 | Resolution to convene shareholders meeting | DART |
| 2026-03-06 | Annual report (2025.12) | DART |
Showing the 20 most recent of 31 filings. The full brief lists all of them.
For business customers. EU companies: enter your VAT number at checkout and no VAT is charged (reverse charge).
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.