Early Termination of Sales Contract with Dong-A ST – Conditional Revenue Unrealized

Early termination of sales/supply contract with Dong-A ST (original term 2015~2027) effective April 30, 2026, by mutual agreement
Termination amount of KRW 5 billion is conditional (unpaid due to unmet performance); confirmed amount KRW 1.7 billion already received
No refund required from us; termination at counterparty's request
Given 2025 consolidated revenue of KRW 27.39 billion, impact is limited (KRW 1.7 billion already collected)
Opportunity cost from unrealized conditional KRW 5 billion, but core business impact remains manageable