Formosa Petrochemical Corporation announced that TWD 3 million penalty imposed by Tainan Environmental Protection Bureau in accordance with Article 52 of the Waste Disposal Act. Tainan EPB determined that the bottom ash generated from Circulating Fluidized Bed Boilers (CFB) which used in Madou Guan Hui and Zuojhen Hong Sheng sand and gravel storage fields were ?Waste? after the inspection on 24 January 2013 (While the object were legitimately registered as ?Products?

by Yunlin County Government); Tainan EPB again imposed the company in the amount of TWD 3 million for the reason that there is no improvement within a limited time period, and ask the company to improve within a limited time period. The Company will file the administrative remedy and pay the fine within the legal time period in advance. The Company will file the administrative remedy to protect the Company's rights.

Date of occurrence of the event: October 23, 2023.