Seojin System
At a glance
Seojin System filed 167 disclosures in the last 12 months, including 40 5% holder, 23 insider, 9 contract, 5 issuance, 1 earnings and 1 buyback. The most recent key filing was on Oct 16: A major holder's stake rose from 20.51% to 20.51% (pledge).
Revenue for 2025 was ₩1.07T, down 12.1% on 2024. Operating margin was 0.1% against 9% a year earlier. Debt was 213% of equity at year end. The latest interim report (2026 H1) shows revenue of ₩690B and operating loss of ₩52.3B.
The 2025 annual report lists 199 employees with an average tenure of 4 years and average pay of ₩55M, #1226 of 1,829 listed companies by average pay. Its 5 directors and auditors were paid ₩94.4M each on average. It paid no cash dividend for 2025. 전동규 and related parties held 26.37% at year end.
Of 1 recent 5%+ holder report, 0 raised and 0 cut a stake; the largest stake reported was 20.51% on Oct 16.
From the 2025 annual report
Staff: 199 (168 men, 31 women), of whom 9 on fixed-term contracts. Total pay for the year: ₩10.9B. Directors and auditors: 5, paid ₩472M in total.
No cash dividend was paid for 2025.
Largest shareholder
전동규 holds 25.87%; with 11 related parties the group holds 26.37% of common shares at year end (from 26.32% at the start of the year).
Auditor: 이정회계법인 · opinion: Unqualified.
Source: 2025 annual business report (DART). How figures are combined
New contracts, last 12 months
1 new supply contract worth 10% of the revenue stated in the filings.
Amended amounts replace the originals. Subsidiary contracts and terminations are excluded.
Financial summary
5%+ holder reports
Key filings
Other filings
Links open the original filing on DART, in Korean.