Supply contract signed

What happened

Doosan Enerbility/Single Sale/Supply Contract Signed/(2026.10.01) Single Sale/Supply Contract Signed

Single Sale/Supply Contract Signed 1. Type of Sale/Supply Contract: Construction order - Contract name: Engineering, Procurement and Construction (EPC) of O Mon III Combined Cycle Power Plant Construction Project 2. Contract Details Contract amount (KRW): 837,970,880,392 Recent revenue (KRW): 17,057,876,465,803 As % of revenue: 4.91 Large corporation: Applicable 3. Counterparty: VIETNAM NATIONAL INDUSTRY - ENERGY GROUP (PVN) Relationship with the company: - 4. Sale/Supply region: Can Tho, Vietnam 5. Contract period: Start date 2026-10-06; End date 2030-10-06 6. Key contract terms Down payment/advance payment: Yes Payment terms, etc.: Billing and payment upon achievement of milestones 7. Contract (order) date: 2026-09-30 8. Disclosure Deferral Matters Reason for deferral: - Deferral deadline: - 9. Other Matters for Investment Reference - The contract amount (KRW) in "2." above applies the first-quoted exchange rates on the contract date (2026-09-30) (USD = KRW 1,358.40; JPY = KRW 8.6316; VND = KRW 0.0523). * Foreign currency contract amount: USD 371,095,083.71 + JPY 31,657,651,000 + VND 1,159,065,742,046 * This contract amount excludes VAT. - The recent revenue (KRW) in "2." above is based on the 2025 year-end consolidated financial statements. - In "5. Contract Period," the "start date" is the expected date of issuance of the Notice to Proceed (NTP), and the "end date" is the expected construction completion date. - The contract date in item 7 is the contract signing date. - The above contract amount and contract period may change during the course of the project. ※ Related Disclosures: -