In order to ensure that the report meets both domestic and global regulations, Formosa Petrochemical Corporation has based its information disclosure and consideration of major issues in this report on the Corporate Social Responsibility Best Practice Principles for TWSE/GTSM Listed Companies of Taiwan, ISO 26000 Social Responsibility, and the Top 10 Principles of the UN Global Compact. This report covers the sustainable performance of Formosa Petrochemical Corporation in three major aspects, Economic, Environmental, and Social, adheres to the G4.0 Core Option of the Global Reporting Initiative (GRI), and is composed in compliance with reference to the Oil and Gas Sector Supplement and the three major principles of materiality, inclusivity, and responsiveness of the AA1000 Accountability Principle Standard to demonstrate Formosa Petrochemical's commitment to sustainability in its corporate operation.