Haesung Optics Co.,Ltd

해성옵틱스(주) · KOSDAQ: 076610 · Medical, precision and optical instruments

Key facts

Korean name: 해성옵틱스(주)
Market / ticker: KOSDAQ · 076610
Industry: Medical, precision and optical instruments
Established: 2002-03-25
Fiscal year ends: December
Website: www.hso.co.kr
DART corp code: 00483735
Latest revenue: ₩53.0B (FY2025)

Items worth checking

low

Conversion / warrant / exchange rights exercised — shares outstanding change — filed on 5 separate dates in the last 12 months, latest 2026-08-28.

Source: Conversion rights exercised

low

Guarantee or collateral provided for another party — filed on 2 separate dates in the last 12 months, latest 2026-07-27.

Source: Decision to guarantee debt of another party

low

Decision on paid-in capital increase (share dilution) — filed 2026-06-01.

Source: Material event report — Paid-in capital increase (rights offering) decision

Financial summary

KRW	FY2023	FY2024	FY2025
Revenue	₩26.3B	₩25.8B	₩53.0B
Operating income	−₩4.8B	−₩5.9B	₩988M
Net income	−₩16.8B	−₩18.4B	−₩2.8B
Total assets	₩70.4B	₩59.0B	₩72.8B
Total liabilities	₩23.3B	₩30.3B	₩34.5B
Total equity	₩47.1B	₩28.7B	₩38.3B
Share capital	₩12.7B	₩12.7B	₩24.2B

Separate statements · FY2025 operating margin 1.9% · liabilities to equity 90% · Annual report FY2025 (Korean original)

Auditor opinions

Not available.

Largest shareholder history

Date	Largest shareholder (Korean)	Stake	Cause (Korean)
2021년 03월 04일	바이오로그디바이스	—	변경전 최대주주의 장내 지분매각
2021년 03월 06일	이재선	—	제3자배정 유상증자
2021년 12월 16일	오에이치얼머스 리스트럭처링 투자조합1호	—	제3자배정 유상증자

Recent filings

Date	Filing	Original
2026-09-07	Resolution to convene shareholders meeting	DART
2026-09-07	Record date / shareholder register closure set	DART
2026-09-01	Amended: Decision to guarantee debt of another party	DART
2026-08-28	Conversion rights exercised	DART
2026-08-18	파생상품거래손실발생	DART
2026-08-14	Half-year report (2026.06)	DART
2026-07-31	Amended: Annual report (2025.12)	DART
2026-07-27	Decision to guarantee debt of another party	DART
2026-06-24	Large shareholding (5%+) report	DART
2026-06-12	Securities issuance results (voluntary)	DART
2026-06-01	Material event report — Paid-in capital increase (rights offering) decision	DART
2026-05-27	Adjustment of conversion price	DART
2026-05-21	Conversion rights exercised	DART
2026-05-15	Amended: Conversion rights exercised	DART
2026-05-15	Amended: Quarterly report (2026.03)	DART
2026-05-14	Quarterly report (2026.03)	DART
2026-05-08	Conversion rights exercised	DART
2026-05-07	Exchange inquiry	DART
2026-05-06	Exchange inquiry	DART
2026-03-31	Annual general meeting results	DART

Showing the 20 most recent of 45 filings. The full brief lists all of them.

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Other Korean companies in Medical, precision and optical instruments

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SEKONIX CO., LTD. KOSDAQ 053450

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.