STO

At a glance

STO filed 26 disclosures in the last 12 months, including 3 buyback. The most recent key filing was on Aug 5.

Revenue for 2025 was ₩71.5B, up 1.8% on 2024. It made an operating loss of ₩1.4B. Debt was 221% of equity at year end. The latest interim report (2026 H1) shows revenue of ₩35.9B and operating loss of ₩411M.

The 2025 annual report lists 89 employees with an average tenure of 8.7 years and average pay of ₩62.6M, #854 of 1,829 listed companies by average pay. Its 6 directors and auditors were paid ₩128M each on average. It paid no cash dividend for 2025. 김흥수 and related parties held 70.99% at year end.

From the 2025 annual report

Staff: 89 (49 men, 40 women), of whom 1 on fixed-term contracts. Total pay for the year: ₩5.6B. Directors and auditors: 6, paid ₩767.7M in total.

No cash dividend was paid for 2025.

Largest shareholder

김흥수 holds 67.73%; with 1 related party the group holds 70.99% of common shares at year end.

Individuals paid ₩500M or more

Auditor: 한울회계법인 · opinion: Unqualified.

Source: 2025 annual business report (DART). How figures are combined

Financial summary