Doosan Fuel Cell signed a ₩27.5bn maintenance contract with YH Power 2. The value equals 6.05% of FY2025 consolidated revenue. It covers 20 years of service at a plant using the company's fuel-cell equipment. The contract was signed on August 11, 2026 and ends March 31, 2048. Service fees are paid quarterly without an advance. The value and period may change.