Sinopec Corp (00386.HK) disclosed on July 16, 2025, that supervisors Tan Wenfang and Zhang Chunsheng have stepped down from their positions at the energy giant. Both executives submitted resignation reports citing age considerations as the reason for their departure from the state-owned petroleum conglomerate. The board acknowledged receipt of their resignations effective immediately, marking a leadership transition at one of China's largest integrated energy and chemical companies.