[Amended] Supply contract signed

What happened

Amendment report

Amendment date: 2026-08-13

1. Disclosure document subject to amendment Supply contract signed

2. Date of filing of the disclosure document subject to amendment 2025-04-11

3. Reason for amendment Change in contract amount

4. Amended items Amended item: Before amendment / After amendment 2. Contract details - Contract amount: 103,965,000,000 / 112,943,004,000 2. Contract details - As percentage of revenue (%): 6.59 / 7.16

- Supply contract signed

1. Type of sales/supply contract Construction order received

- Contract name Gimnyangjang-dong, Cheoin-gu, Yongin street housing maintenance project

2. Contract details Contract amount (KRW): 112,943,004,000 Most recent revenue (KRW): 1,578,173,429,989 As percentage of revenue (%): 7.16 Whether a large corporation: Not applicable

3. Counterparty Gimnyangjang-dong 342-5 area street housing maintenance project association - Relationship with the Company: -

4. Sales/supply region Gimnyangjang-dong 342-5 area, Cheoin-gu, Yongin

5. Contract period Start date: -; End date: -

6. Main contract terms Whether there is a down payment/advance payment: No Payment terms, etc.: Progress payment

7. Contract (order) date 2025-04-11

8. Details related to disclosure confidentiality Reason for confidentiality: - Confidentiality deadline: -

9. Other important matters relevant to investment decisions 1) The contract amount in item 2 above is exclusive of VAT. 2) The most recent revenue in item 2 above is based on the consolidated financial statements as of the end of 2024. 3) The contract period in item 5 above is 42 months from the actual commencement date. 4) Project overview: Construction to build apartment housing, officetels, and neighborhood living facilities in 3 buildings of 4 basement floors and 32 above-ground floors in the Gimnyangjang-dong 342-5 area, Cheoin-gu, Yongin. 5) The construction period and contract amount may change depending on the building permit and construction progress process.

* Related disclosures 2025-04-11 Supply contract signed