Could the People's Liberation Army Navy sustain convoy escorts from the Persian Gulf for several months?
Short answerIt has enough ships, but limited forward sustainment would require a large force supported mostly from China, constrain other operations, and create major diplomatic and strategic consequences.
NotesThe PLAN has enough ships to mount Gulf convoy escorts, but forward facilities in Africa would not provide all the support required. Long supply lines from China would absorb ships and logistics capacity while a conspicuous Chinese presence in the Indian Ocean influenced Indian naval planning. Escorting international shipping could let Beijing challenge the United States' role as guarantor of sea-lane security and present the operation as a service to other states. A mine strike or escalation would still create serious political risks for China, Iran, the United States, and the ships being protected.