PetroChina’s Yunnan Petrochemical Unit to Shut for Two-Month Overhaul
- Maintenance Shutdown: PetroChina announced that its Yunnan Petrochemical Company will undergo a planned two-month maintenance shutdown from November 15, 2025 to January 15, 2026, temporarily halting crude processing operations at one of China’s major inland refineries.
Updated Analysis
The Yunnan refinery, located in Anning City, Kunming Province, has an annual crude processing capacity of approximately 13 million metric tons. The overhaul aims to improve efficiency, enhance safety systems, and comply with China’s updated emission standards for refining facilities. During the shutdown, regional supplies of diesel, gasoline, and jet fuel may tighten, especially in southwestern provinces and nearby ASEAN import markets that rely on Chinese refined products.
Key Highlights
- Capacity Affected: Around 260,000 barrels per day of refining throughput will be offline for two months.
- Regional Supply Impact: Southwest China and neighboring Southeast Asian markets could see reduced fuel exports and higher product premiums during the period.
- Operational Goal: The overhaul will modernize key refining units, including hydrocracking and desulfurization systems, aligning with Beijing’s cleaner-fuel initiatives.
- Timing: Shutdown scheduled from November 15 2025 to January 15 2026.
Read full coverage:
Reuters — PetroChina’s Yunnan Petrochemical Unit to Shut for Two-Month Overhaul
Strategic & Market Snapshot
This planned maintenance highlights China’s ongoing commitment to refining modernization and environmental compliance. The temporary capacity loss could tighten diesel and gasoline availability in the region, influencing regional product pricing. For Southeast Asian fuel distributors and related sectors — such as transport and tyre markets — short-term price fluctuations and supply adjustments should be anticipated through early 2026.

