[Amended] Supply contract signed

What happened

Asicland / Single Sales/Supply Contract Signed / (2026.08.18) Single Sales/Supply Contract Signed

Amendment Report Amendment Date: 2026-08-18

1. Disclosure Document Being Amended: Single Sales/Supply Contract Signed 2. Filing Date of the Disclosure Document Being Amended: 2026-08-18 3. Reason for Amendment: Change in contract amount 4. Items Corrected Item: 2. Contract Details; Before Correction: Final Contract Amount (KRW) 25,433,596,300; Total Contract Amount (KRW) 25,433,596,300; % of Revenue 27.04; After Correction: Final Contract Amount (KRW) 25,713,987,180; Total Contract Amount (KRW) 25,713,987,180; % of Revenue 27.3

- Single Sales/Supply Contract Signed

1. Content of Sales/Supply Contract: Application-specific semiconductor (ASIC) mass-production supply contract

2. Contract Details Whether a Conditional Contract: Not applicable Final Contract Amount: 25,713,987,180 Conditional Contract Amount: - Total Contract Amount (KRW): 25,713,987,180 Recent Revenue (KRW): 94,058,022,977 % of Revenue: 27.3

3. Counterparty Name: - Recent Revenue (KRW): - Principal Business: - Relationship with the Company: - Whether the Company Performed a Similar Contract with This Counterparty in the Last 3 Years: Not applicable

4. Sales/Supply Region: Republic of Korea

5. Contract Period: Start Date: 2026-01-08; End Date: 2026-12-31

6. Key Contract Terms Whether There Is a Down Payment/Advance Payment: No Payment Terms, etc.: Within 30 days after tax invoice issuance

7. Sales/Supply Method In-House Production: Applicable Outsourced Production: Applicable Other: -

8. Contract (Order) Date: 2026-01-08

9. Matters Related to Disclosure Deferral Deferral Deadline: 2026-12-31 Reason for Deferral: At the counterparty's request to protect its trade secrets

10. Other Matters for Investment Reference - The "Recent Revenue" under item 2, "Contract Details," above is based on the consolidated financial statements as of the end of 2024. - The "Contract Amount" under item 2, "Contract Details," above excludes VAT. - The revised contract amount under item 2, "Contract Details," above is USD 17,754,600, converted using Hana Bank's initial quoted exchange rate (KRW 1,448.30) as of the contract date, January 8, 2026. - The content of item 3, "Counterparty," has been omitted at the counterparty's request for confidentiality. - The above contract amount and contract period may change in the course of the design process.

* Related Disclosures 2026-01-08 Single Sales/Supply Contract Signed