Contract Amount for Gangwon Power Tunnel Project Revised Up by 1.8%

Correction of single sales/supply contract: contract amount increased by 1.8% from KRW 78.77B to KRW 80.56B (approx. +KRW 1.8B).
Sales ratio revised up from 4.41% to 4.51% (based on 2022 consolidated revenue of KRW 1.79T).
Counterparty: Korea Electric Power Corporation (KEPCO); project location in Jeongseon, Gangwon; contract period July 2023 – Nov 2027.
Amount reflects the company's 80% share; project includes Shield TBM, total power tunnel length 4,004m.
Other conditions (advance payment, progress payment) and potential schedule changes remain unchanged.

Filing: [Correction of Description] Conclusion of Single Sale and Supply Contract
Company: HJ Shipbuilding & Construction (097230)
Submission: HJ Shipbuilding & Construction Co., Ltd
Receipt: 05-06-2026
Under KRX KOSPI Market Division