To strengthen sustainable water resource management and enhance process water efficiency, CGPC commissioned the British Standards Institution (BSI) on November 26, 2025 to conduct the three-year recertification audit of the ISO 46001 Water Efficiency Management System. In addition to verifying the compliance of the current management system, the audit also included a comprehensive review of the operational efficiency of the water circulation system, management procedures, and mechanisms for continual improvement, in alignment with the United Nations SDG 6.4 on “increasing water-use efficiency” as a sustainability goal.”
In response to global sustainability trends, CGPC has integrated “water conservation” into its sustainability strategy. Through the ISO 46001 systematic management framework, combined with the “High Performance Bio-treatment & Filtration (HBF) System,” the Company continues to enhance process water reuse efficiency and reduce water withdrawal, achieving both environmental and economic benefits while demonstrating concrete actions in support of SDG 6.4 on improving water-use efficiency.
To further strengthen the foundation of water resource management, CGPC also initiated a Water Reuse Efficiency Assessment Program, engaging the Plastic Industry Development Center (PIDC) to assist in compiling water-use data, analyzing loss points, and evaluating reuse efficiency across various production stages, resulting in a comprehensive water reuse documentation and assessment report.
In addition, to ensure the credibility of the assessment results, CGPC commissioned the Taiwan Industry Service Foundation on November 19 to conduct an independent verification of water reuse efficiency. The verification was carried out through rigorous review of water-use records and on-site measurement data to ensure the accuracy and reliability of the results, forming a solid basis for subsequent applications for water charge reduction and related policy support.