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Seojin System

서진시스템 · 178320 · KOSDAQ
Filings, last 12 months
167
Supply contracts
9
Insider reports
23
Share & bond issues
5

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

Employees
199
Average pay
₩55M
Average tenure
4 yrs
Avg. director pay
₩94.4M

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

2023
Revenue ₩779B
Op. profit ₩49B
Debt/equity 205%
2024
Revenue ₩1.21T
Op. profit ₩109B
Debt/equity 140%
2025
Revenue ₩1.07T
Op. profit ₩1.1B
Debt/equity 213%
2026 H1
Revenue ₩690B
Op. profit -₩52.3B
Debt/equity 206%
RevenueOperating profitOperating lossConsolidated where available · from periodic reports

5%+ holder reports

10/16Stake 20.51%0.00pp

Key filings

9/1IssuanceAmendedConvertible bond issue
9/1IssuanceAmendedConvertible bond issue
4/22IssuanceRights offering
4/20InsiderAmendedInsider ownership report
12/315% holderReport of 5%+ holding
12/265% holderReport of 5%+ holding
12/195% holderReport of 5%+ holding
12/11BuybackShare cancellation
12/105% holderReport of 5%+ holding
12/105% holderReport of 5%+ holding

Other filings

Links open the original filing on DART, in Korean.