Supply contract signed

What happened

Single Sales/Supply Contract Signed

1. Content of sales/supply contract: AI computing resource utilization infrastructure enhancement project

2. Contract details Whether it is a conditional contract: Not applicable Confirmed contract amount: KRW 315,128,013,054 Conditional contract amount: - Total contract amount (KRW): 315,128,013,054 Most recent revenue (KRW): 10,272,320,511 Ratio to revenue (%): 3,067.74

3. Counterparty: Samsung SDS Co., Ltd. - Most recent revenue (KRW): 13,929,868,497,711 - Main business: IT services - Relationship with the company: - - Whether the company performed a similar contract with the counterparty in the last 3 years: Not applicable

4. Sales/supply region: Domestic (South Korea)

5. Contract period: start date 2026-07-07; end date 2031-12-31

6. Key contract terms Whether there is a down payment/advance payment: Yes Payment terms, etc.: - Advance payment: 50% of contract amount - Interim payment: 30% of contract amount - Final payment: 20% of contract amount

7. Sales/supply method: in-house production - Not applicable; outsourced production - Applicable; other - -

8. Contract (order) date: 2026-07-07

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

10. Other matters for investors' reference - The most recent revenue in item 2 above is based on the consolidated financial statements as of the end of 2025. - The contract amount in item 2 above excludes value-added tax. - The counterparty's most recent revenue in item 3 above is based on the consolidated financial statements as of the end of 2025. - The above contract details may change depending on progress and negotiations.

Related disclosures: -