Key facts
- Formosa shut its base oil unit on June 29 due to a technical issue with its upstream vacuum distillation unit.
- The issue has cut off base oil feedstock, impacting heavy-grade output.
- Production is expected to resume by mid-July.
- Bulk shipments are deferred to late July, while flexibag supplies are deferred to mid-July.
- Asian fob export prices for Group II N150 and N500 fell by $30/t to $1,745/t in the week ending June 26.
Taiwanese refiner Formosa has shut its base oil unit as of June 29, 2026, due to a technical issue with its upstream vacuum distillation unit that has disrupted feedstock supply. The company's base oil distributor reported the shutdown.