Supply contract terminated

What happened

1. Classification of the terminated sales/supply contract: Supply of goods - Name of terminated contract: DNT sale/purchase agreement 2. Termination details - Terminated amount (KRW): 293,947,635,296 - Most recent revenue (KRW): 716,638,987,954 - Ratio to revenue (%): 41.0 - Whether a large corporation: Not applicable 3. Counterparty: OCI Co., Ltd. - Relationship with the Company: - 4. Contract period: start 2014-08-18, end 2027-03-28 5. Main reason for termination: Termination of the supply contract following the counterparty's exit from its TDI business 6. Termination date: 2026-09-29 7. Matters related to withholding disclosure - Reason for withholding: - - Withholding deadline: - 8. Other important matters for investment decisions - This disclosure concerns the termination of the single sales/supply contract disclosed on April 28, 2015 (original) and June 28, 2024 (amended). - Both parties faithfully performed their contractual obligations after execution, but the Company was notified of the termination of the DNT purchase agreement following the counterparty's decision to exit the TDI business. - "2. Termination details - terminated amount (KRW)" above is the remaining amount after subtracting the amount already performed from the original contract amount (KRW 992.8 billion); the performed amount includes the expected supply volume through the termination effective date (2027-03-28), six months after the termination notice date (2026-09-29). - "2. Termination details - most recent revenue (KRW)" above is revenue based on the Company's consolidated financial statements as of the end of 2014. The ratio to revenue based on the most recent fiscal year's (2025) consolidated financial statements (KRW 1.1 trillion) is 26.1%. - "6. Termination date" above is the date the Company received the official letter on the matter from the counterparty; the termination takes effect six months after the termination notice date. Related disclosures: 2024-06-28 Single sales/supply contract signed; 2015-04-28 Single sales/supply contract signed