Daewoo Engineering & Construction

047040 · KOSPI · Industrials · LARGE CAP

[Amended] Supply contract signed

Daewoo Engineering & Construction Co., Ltd. amended its June 12, 2024 supply contract disclosure for the Songnae 1-1 District housing reconstruction project, raising the contract amount from US$168M (3.13% of revenue) to US$169M (3.16% of revenue) and correcting the total floor area to 148,825.369 sq.m.

Supply contract([Amended] Supply contract signed)· FILED 2026-07-07· RCEPT 20260707800360

What happened

Amendment Report Amendment date: 2026-07-07

1. Disclosure document being amended: Supply contract signed 2. Original submission date of the disclosure document being amended: 2024-06-12 3. Reason for amendment: execution of a contract amendment

4. Amendment details Item 2 (Contract details - contract amount (KRW) / ratio to revenue (%)) - before: 254,830,136,481 / 3.13 - after: 257,457,297,200 / 3.16 Item 9 (Other important matters - project overview b. total floor area) - before: 148,814.597 sq.m. - after: 148,825.369 sq.m.

Supply Contract Signed

1. Type of sales/supply contract: construction order - contract name: Songnae 1-1 District Housing Reconstruction Project

2. Contract details Contract amount (KRW): 257,457,297,200 Most recent revenue (KRW): 8,136,705,736,642 Ratio to revenue (%): 3.16 Whether a large corporation: applicable

3. Counterparty: Songnae 1-1 District Housing Reconstruction Project Association - Relationship with the company: -

4. Sales/supply region: vicinity of 339 Songnae-dong, Bucheon-si, Gyeonggi-do

5. Contract period: start date 2024-02-05; end date 2026-09-04

6. Key contract terms Whether there is a down payment/advance payment: No Payment terms, etc.: payment linked to unit sales (bunyangbul)

7. Contract (order) date: 2021-05-20

8. Disclosure deferral details: reason for deferral -; deferral deadline -

9. Other important matters related to investment decisions - Project overview: a. site area 34,735.10 sq.m.; b. total floor area 148,825.369 sq.m.; c. scale: 2 basement floors / 23 floors above ground, 12 buildings, total 1,045 households plus ancillary welfare facilities - The contract amount in item 2 above includes value-added tax. - The most recent revenue in item 2 above is based on the consolidated financial statements as of the end of 2020. - The construction period in item 5 above is 31 months from the actual commencement date. - The contract amount and construction period may change later as provided in the construction contract.

Related disclosures: 2021-05-21 Supply contract signed 2023-07-12 Supply contract signed 2024-06-12 Supply contract signed

Filed2026-07-07, [Amended] Supply contract signed
SourceDART rcept 20260707800360 → open original filing

Source: DART. Information only, not investment advice.

For informational purposes only. This is not investment advice, a recommendation, or a solicitation to buy or sell any security. Do your own research; any investment decision is your own responsibility.

Data from DART, Korea's official corporate-filing system. Data sourced from official DART filings. Accuracy is not guaranteed. Figures are as of the date shown. As of 2026-07-07 (KST). · Converted at 1 USD ≈ ₩1,325 (rate of 2026-10-21).