KRW 187 Billion Contract for ESS and Data Center PCS

Seojin System signed a supply contract with Ace Engineering for ESS and data center PCS (Power Conversion System) worth KRW 187 billion (17.54% of latest revenue)
Counterparty is Ace Engineering, with final delivery to overseas customers
Supply region is the United States; contract period from May 18, 2026 to December 31, 2027
Payment terms: EXW (delivery at US/Vietnam factory), cash payment within 45 days after delivery
Production method: outsourced production through overseas subsidiaries