In 2025, GC, as the Chemical Flagship of PTT Group with a combined chemical and petrochemical capacity of 14.25 million tons per year and a crude oil and condensate distillation capacity of 280,000 barrels per day. GC consists of 5 business groups and has other businesses and services which GC invested for supporting, summarized in the diagram as follows:

Reference: PTTGC One Report 2025

Remarks:

1 Includes the nameplate capacity of Hexamethylene Diisocyanate (HDI) Derivatives of Vencorex US, Inc. (“Vencorex U.S.”) and Vencorex (Thailand) Company Limited (“Vencorex Thailand”), subsidiaries of Vencorex Holding, to enter into a Share Purchase Agreement to sell 100% of the ordinary shares to subsidiaries of Covestro AG. The Share Purchase Agreement has been signed on August 2025.

2 Includes the nameplate capacity of Super Engineering Plastic Polyamide (PA9T) and Hydrogenated Styrenic Block Co-polymers (HSBC) of Kuraray GC Advanced Materials Co., Ltd. (KGC), for which the Company reduced its shareholding to 13.3% in October 2025.

Services and Others

Marketing and Sales of Products and Packaging Market Development

Sales of Products across the region
Operated by Dealers authorized by GCM
Plastic Packaging Market Development
Operated by SPIG
Upcycling Product Development & Sales
Operated by SUN

Logistics, Jetty, Utilities, and Infrastructure

Logistics Services
Operated by WGCL
Jetty and Chemical Tank Farm
Operated by TTT
Pipeline Infrastructure Services
Operated by EFT
Utility Business
Operated by GPSC
Land and Property Management
Operated by GCEC
Information and Communication Technology Services
Operated by PTT Digital

Technical, Engineering, Plant Maintenance, Safety, Occupational Health, Environmental, and Security Businesses

Plant Maintenance and Engineering Design Service
Operated by GCME
Quality Safety, Occupational Health, Environmental, and Security Services
Operated by NPC and NPCSG

Social Enterprise

Management Consultancy
Operated by PRS RAYONG
Social Enterprise
Operated by SPSE

Other Supporting Businesses

GC Group’s Liquidity Management and Financing Vehicle Service
Operated by GCTC
Corporate Venture Capital Investment (CVC)
Operated by GCV and GCVA
Outsourcing Service
Operated by BSA