Correction: TPC Mass Production Facility Investment Period Extended to 2026-09-30

Correction filing for new facility investment (correction date: 2026-04-30)
Investment target: TPC (TerePhthaloyl Chloride) mass production facility
Investment amount: KRW 96,742,350,000 (13.1% of equity)
Investment period: 2024-09-05 ~ 2026-09-30 (extended by 5 months from original end date 2026-04-30)
Reason for correction: Facility supplementation for process optimization
Purpose: New business development through first domestic mass production of aramid fiber key raw material TPC