Tuksu Construction

026150 · KOSDAQ · Industrials · SMALL CAP

Updated contract terms.

Tuksu Construction updated a previously disclosed supply contract with HDC Hyundai Development Co., Ltd., now worth US$23.2M, about 13.77% of its recent annual revenue, running through Jun 2027.

Supply contract([Amended] Supply contract signed)· FILED 2026-09-18· RCEPT 20260918900098

US$23.2MContract value
13.77%vs. recent revenue
Jun 2027Throughfrom Jul 2025

Converted at 1 USD ≈ ₩1,379.53 (filing-date rate, 2026-09-17 close)

What happened

Tuksu Construction updated a previously disclosed supply contract with HDC Hyundai Development Co., Ltd., now worth US$23.2M, about 13.77% of its recent annual revenue, running through Jun 2027.

For context, this single contract equals about 13.77% of the company's most recent annual revenue.

CounterpartyHDC Hyundai Development Co., Ltd.
Contract valueUS$23.2M
vs. recent revenue13.77%
ThroughJun 2027 (from Jul 2025)
Filed2026-09-18, [Amended] Supply contract signed
SourceDART rcept 20260918900098 → open original filing
Read the full filing in English

Special Construction / Single Sales and Supply Contract Execution / (2026.09.18) Single Sales and Supply Contract Execution Correction Report

Correction Date: 2026-09-18

1. Disclosure Documents Subject to Correction Single Sales and Supply Contract Execution

2. Submission Date of Disclosure Documents Subject to Correction 2024-09-10

3. Reason for Correction Contract modification

4. Correction Details

Correction Item | Before Correction | After Correction 2. Contract Details - Confirmed Contract Amount | 30,561,679,000 | 32,072,700,000 2. Contract Details - Total Contract Amount | 30,561,679,000 | 32,072,700,000 2. Contract Details - Percentage of Recent Sales | 13.12% | 13.77%

10. Other Matters for Reference in Investment Decisions

Before Correction: 1. Contract amount is exclusive of value-added tax. 2. Recent sales amount is based on the consolidated financial statements for 2023, which is the date of the initial contract. 3. The above contract period and contract amount may be subject to change in the course of future construction.

After Correction: 1. Contract amount is exclusive of value-added tax. 2. Recent sales amount is based on the consolidated financial statements for 2023, which is the date of the initial contract. 3. Progress to date: As of September 18, 2026, 8.6% of the contract amount (excluding value-added tax: KRW 2,758,300,000 collected) has been completed. 4. The above contract period and contract amount may be subject to change in the course of future construction.

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Single Sales and Supply Contract Execution

1. Sales and Supply Contract Details Electric Power Supply Facility Power Conduit Construction in Chungcheongnam-do Region (Dangjin Thermal Power Plant - Sinsongsan 1st Phase)

2. Contract Details Conditional Contract Status: Not applicable Confirmed Contract Amount: 32,072,700,000 Conditional Contract Amount: - Total Contract Amount (KRW): 32,072,700,000 Recent Sales Amount (KRW): 232,863,674,296 Percentage of Recent Sales (%): 13.77

3. Counterparty to Contract HDC Hyundai Industrial Development Co., Ltd. - Recent Sales Amount (KRW): 4,190,788,148,341 - Principal Business: Construction and real estate development - Relationship with Company: - - Performance of Similar Contracts with Company in Recent 3 Years: Not applicable

4. Sales and Supply Region Dangjin-si, Chungcheongnam-do

5. Contract Period Start Date: 2025-07-01 End Date: 2027-06-28

6. Principal Contract Terms Contract Deposit and Advance Payment: None Payment Terms: Once per month, 100% in cash

7. Sales and Supply Method In-house Production: Applicable Outsourced Production: Not applicable Other: -

8. Contract (Order) Date 2024-09-10

9. Disclosure Reservation Related Matters Reservation Period: - Reason for Reservation: -

10. Other Matters for Reference in Investment Decisions 1. Contract amount is exclusive of value-added tax. 2. Recent sales amount is based on the consolidated financial statements for 2023, which is the date of the initial contract. 3. Progress to date: As of September 18, 2026, 8.6% of the contract amount (excluding value-added tax: KRW 2,758,300,000 collected) has been completed. 4. The above contract period and contract amount may be subject to change in the course of future construction.

※ Related Disclosure: 2024-09-10 Single Sales and Supply Contract Execution

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 2026-09-18 (KST). · Converted at 1 USD ≈ ₩1,325 (rate of 2026-10-21).

Company summaries are generated and may contain errors; financial figures are mapped directly from official filings.