Formosa Plastics ACN Unit Shutdown: Market Impact

Formosa Plastics eye maintenance at ACN unit

Jun 24, 2026

Formosa Plastics Corporation (FPC) is likely to shut down its Acrylonitrile (ACN) unit in Mailiao. A source in Taiwan informed a team member, “The company has scheduled a maintenance turnaround at the unit for mid-December 2025. However, details regarding the duration of the shutdown remain unclear, and confirmation from an official source has not been obtained.” Located in Mailiao, Taiwan, the ACN unit has a production capacity of 280,000 mt/year.