GHG Reduction Initiatives
GC has introduced numerous projects to reduce greenhouse gas emissions (Scope 1 and 2) in order to lessen the impact of climate change, with these efforts aligning with its energy management and climate change strategy.
Focusing on driving two key aspects as follows:
- Efficiency-driven: Enhancing operational efficiency by adopting technologies that reduce energy consumption and greenhouse gas emissions in production processes, as well as transitioning to renewable or low-carbon energy sources.
- Compensation-driven: Carbon capture and offsetting to manage residual greenhouse gas emissions from production processes and business operations through the development and application of Carbon Capture and Storage (CCS) technology, coupled with offsetting through natural carbon absorption methods (Nature-based Solutions).
Efficiency-Driven
GC has employed energy consumption reduction and decarbonization technologies in the production process. The company has also switched to renewable energy or low-carbon energy to minimize greenhouse gas emissions from production. Accordingly, all GC plants have achieved ISO 50001:2018 energy management system certification. In this regard, GC has implemented key projects such as Heat Recovery, Compressor Efficiency Optimization, and Biogas.
Overview of Efficiency-driven Performance
| No. of Implemented GHG Reduction Projects* | 435 Projects |
| Energy Reduction | 4,675,576 GJ per year* |
| Implementation Renewable Energy from Solar | 14,724 MWh |
| Cost Reduction (million baht*) | 1,534 |
| Amount of GHG Reduction (Scope 1 and 2) | 433,966 tons of CO2 equivalent* |
Remark:
* Performance in 2025 for all projects commencing in 2022
Energy Conservation Projects
GC has implemented a total of 123 new energy conservation projects by enhancing energy efficiency in production processes through the application of innovation and technology while raising employee awareness to enable efficient use of energy and take part in fostering a corporate culture of energy conservation
Overall Performance of New Energy Conservation Projects in 2025
| Investment (million baht) | 1,116 |
| Reduction of Energy Consumption (GJ per year*) | 1.58 |
| Reduction of GHG Emissions (tons of CO2 equivalent per year**) | 85,198 |
| Reduction of Costs (million baht*) | 389 |
| Equivalent to Planting Trees (million trees per year***) | 9 |
Remark:
* Potential net GHG reduction per annum
** Estimated GHG reduction from project based on GC’s business plan
*** Based on the Thailand Greenhouse Gas Management Organization (TGO)’s data whereby the carbon sequestration capacity of forest plants is 0.95 tCO2 /rai/year with a density of 100 trees/rai
Gas Turbine Generator’s Advance Gas Path (AGP) Improvement
GC has installed Advanced Gas Path (AGP) at the Gas Turbine Generator (GTG) in the Utility Plant to minimize the GTG’s energy consumption, which has contributed to energy and cost reduction.
| Investment (million baht) | 71 |
| Reduction of Energy Consumption (GJ per year*) | 189,686 |
| Reduction of GHG Emissions (tons of CO2 equivalent per year**) | 10,697 |
| Reduction of Costs (million baht*) | 64.4 |
| Equivalent to Planting Trees (million trees per year***) | 1.1 |
Remark:
* Potential net GHG reduction per annum
** Estimated GHG reduction from project based on GC’s business plan
*** Based on the Thailand Greenhouse Gas Management Organization (TGO)’s data whereby the carbon sequestration capacity of forest plants is 0.95 tCO2 /rai/year with a density of 100 trees/rai
Boiler Efficiency Improvement
GC has enhanced the efficiency of steam boilers in the Utility Plant area by applying ceramic coating to the heat exchange tubes inside the steam boilers, aiming to improve heat absorption efficiency and reduce energy consumption, as well as lower the Company's overall expenses.
| Investment (million baht) | 3.6 |
| Reduction of Energy Consumption (GJ per year*) | 9,875 |
| Reduction of GHG Emissions (tons of CO2 equivalent per year**) | 554 |
| Reduction of Costs (million baht*) | 1.5 |
| Equivalent to Planting Trees (million trees per year***) | 0.06 |
Remark:
* Potential net GHG reduction per annum
** Estimated GHG reduction from project based on GC’s business plan
*** Based on the Thailand Greenhouse Gas Management Organization (TGO)’s data whereby the carbon sequestration capacity of forest plants is 0.95 tCO2 /rai/year with a density of 100 trees/rai
Distillation Column Improvement
GC has improved the efficiency of the distillation column in the Aromatics Plant 2 area by reducing the reflux rate within the distillation column to lower energy consumption, while ensuring product quality control meets the established standards (Product Specification).
| Reduction of Energy Consumption (GJ per year*) | 73,200 |
| Reduction of GHG Emissions (tons of CO2 equivalent per year**) | 3,554 |
| Reduction of Costs (million baht*) | 19.6 |
| Equivalent to Planting Trees (million trees per year***) | 0.4 |
Remark:
* Potential net GHG reduction per annum
** Estimated GHG reduction from project based on GC’s business plan
*** Based on the Thailand Greenhouse Gas Management Organization (TGO)’s data whereby the carbon sequestration capacity of forest plants is 0.95 tCO2 /rai/year with a density of 100 trees/rai
Renewable Energy
GC implemented renewable energy projects, including the expansion of solar energy generation systems and the utilization of biogas as a substitute for fossil fuels.
| Reduction of Energy Consumption (GJ per year*) | 70 |
| Reduction of GHG Emissions (tons of CO2 equivalent per year**) | 21,766 |
| Reduction of Costs (million baht*) | 4 |
| Equivalent to Planting Trees (million trees per year***) | 2.3 |
Remark:
* Potential net GHG reduction per annum
** Estimated GHG reduction from project based on GC’s business plan
*** Based on the Thailand Greenhouse Gas Management Organization (TGO)’s data whereby the carbon sequestration capacity of forest plants is 0.95 tCO2 /rai/year with a density of 100 trees/rai
Solar Energy
To drive climate change-related projects while aligning with the Company's direction toward zero greenhouse gas emissions and aiming for the Net Zero target, the Company has installed solar power generation systems in the form of rooftop solar (Solar Rooftop) and floating solar (Floating Solar) to help concretely and continuously reduce greenhouse gas emissions. The Company has expanded the installation of rooftop solar power systems by 1.2 megawatts in the Aromatics Plant 2 area and floating solar by 0.6 megawatts in the InnoPlus Solution Center area. Additionally, in collaboration with partners, it has undertaken a project to produce floating solar power panels with a total capacity of 8 megawatts to generate electricity for companies in the Eastern Seaboard Industrial Estate, Rayong Province, using high-density polyethylene (HDPE) plastic pellets under the InnoPlus brand to mold and produce SUNTARA™ floating buoys that possess exceptional strength.
| Energy Production (MWh per year*) | 2,848 |
| Reduction of GHG Emissions (tons of CO2 equivalent per year**) | 1,309 |
| Reduction of Costs (million baht*) | 4 |
| Equivalent to Planting Trees (million trees per year***) | 0.1 |
Remark:
* Potential net GHG reduction per annum
** Estimated GHG reduction from project based on GC’s business plan
*** Based on the Thailand Greenhouse Gas Management Organization (TGO)’s data whereby the carbon sequestration capacity of forest plants is 0.95 tCO2 /rai/year with a density of 100 trees/rai
Biogas
Global Green Chemicals Public Company Limited (GGC), a subsidiary of GC, signed a contract to purchase biogas from Thai Eastern Biopower Company Limited (TEBP) with a maximum initial volume of 34,000 cubic meters per day to replace the use of fossil fuel in steam boilers and hot oil boilers in GGC2 site, which has contributed to the continuous decline in greenhouse gas emissions from the production process as well as company costs.
| Investment (million baht) | 70 |
| Reduction of GHG Emissions (tons of CO2 equivalent per year*) | 23,677 |
| Equivalent to Planting Trees (million trees per year**) | 2.2 |
Remark:
* Estimated GHG reduction from project based on GC’s business plan
** Based on the Thailand Greenhouse Gas Management Organization (TGO)’s data whereby the carbon sequestration capacity of forest plants is 0.95 tCO2 /rai/year with a density of 100 trees/rai
Capture and Storage: CCS
GC, in collaboration with the PTT Group, has conducted a feasibility study for the Eastern Thailand Carbon Capture and Storage Hub (CCS Hub) project in the Eastern region to reduce Thailand’s greenhouse gas emissions. The project is expected to commence operations in 2034 (B.E. 2577).
A comprehensive project study report (White Paper) has been prepared and formally presented to the government on behalf of the PTT Group through the Sub-Committee on Climate Change for Advancing GHG Reduction via Carbon Capture, Utilization and Storage (CCUS) Technologies, under the National Climate Change Policy Committee. The White Paper was also submitted to the Ministry of Natural Resources and Environment (MNRE), which is now proceeding with a proposal to the Cabinet for acknowledgment and in-principle approval of GHG reduction measures through Carbon Capture and Storage (CCS) technology.
This includes assigning relevant agencies to oversee coordination, conduct detailed studies to confirm the suitability of priority target areas in the Upper Gulf of Thailand, and prepare the necessary legal and regulatory frameworks. These actions will lay a solid foundation for Thailand’s long-term transition to a low-carbon economy and industry, fully aligned with the country’s Nationally Determined Contributions (NDC) commitments.
Currently, the Company is in the process of studying new alternative technologies for capturing carbon dioxide (Alternative Emerging Carbon Capture Technology) to reduce operational costs, including evaluating the feasibility and potential of the technologies.
Framework for Industry’s Net-Zero Transition and promote carbon capture and storage (CCS) projects under the Nationally Determined Contributions target (NDC 3.0)
GC in collaboration with the Petrochemical Industry Group of the Federation of Thai Industries (FTIPC), has presented approaches for reducing greenhouse gas emissions (Decarbonization) in Thailand's petrochemical industry through the project to develop a Framework for Industry’s Net-Zero Transition of the Organization for Economic Cooperation and Development (OECD). This aims to assess the importance of carbon dioxide capture and storage (CCS) projects for decarbonization in Thailand's petrochemical industry, with periodic summaries of the assessment results conducted continuously. The results will be compiled in the final project report to be presented to relevant government agencies going forward. Additionally, the Company and the Petrochemical Industry Group of the Federation of Thai Industries (FTIPC) have participated in providing opinions to discuss targets and approaches for decarbonization in the Industrial Processes and Product Use (IPPU Sector), including incentive measures, to support the achievement of the country's greenhouse gas reduction goals. As a result of these discussions, the Department of Climate Change and Environment (DCCE) has recognized the importance of carbon capture and storage (CCS) technology projects and has included them as one of the projects under the decarbonization plan for the IPPU Sector under the Nationally Determined Contributions (NDC 3.0), enabling relevant agencies to proceed with implementation in the future.
Nature-Based Solutions
GC conducts conservation and restoration of natural resources in collaboration with the government, private sector, and communities, with a target to offset 1 million tonnes of carbon dioxide equivalent by 2050 through three approaches: 1) Forest planting projects, including both terrestrial forests and mangroves; 2) Forest maintenance projects; and 3) Purchasing removal carbon credits. These initiatives can help enhance biodiversity in terms of plant species, animal species, and ecosystems, as well as generate additional income for communities by supporting their participation in planting, caring for, maintaining, and restoring forests in the project areas.
| Project | Details | Area (rai) | Estimated Carbon Sequestration (tons of CO2 equivalent per year) | Equivalent to the Planting of Trees |
|---|---|---|---|---|
| Reforestation Project | ||||
| Mangrove Planting Project | Collaborating with communities in Rayong province to plant, restore and increase mangrove forests. Expanding the project to Chanthaburi, Trat, Phetchaburi, and Krabi provinces, where planting is ongoing. The project, which is currently in T-VER registration process, aims to promote biodiversity and community economy. | 3,612 | 5,3481 | 1,997,000 |
| Eco-forest Rayong Wanarom | Improving eco-forest areas within the Asia Industrial Estate in Rayong province to serve as a learning center on plants and ecosystems while promoting sustainable plantation. | 83 | 5451 | 251,000 |
| “The More You Plant, the Better” Project by GC x BMA | Collaborating with Bangkok Metropolitan Adminstration (BMA) and Kasetsart University to plant trees at On Nut Solid Waste Disposal Center’s former landfill site to restore it into a green space and develop it into a model in planting forests for carbon credits. | 55 | 1651 | 45,000 |
| Reforestation in GC Chemical Experience Campus | Executives and employees at GC Chemical Experience Campus have engaged in reforestation to contribute to carbon sequestration, as part of the drive towards achieving the Net Zero Target. | 11 | 161 | 4.640 |
| Forest Care Project | ||||
| Carbon Credit from Community Forests for Sustainability | Joining Mae Fah Luang Foundation under Royal Patronage in the project to manage natural resources, improve quality of life, and encourage communities to conserve and increase carbon storage in community forests. | 15,000 | ~4,500-7,5002 | - |
| Huai Mahat Forest Restoration Project | Collaborating with Kasetsart University, the Air and Coastal Defense Command, and the Konrakpa Club under Chaklukya-Huai Mahat Community to restore and maintain the watershed forest ecosystem on Huai Mahat Mountain in Rayong province. | ~2,500 | 32,8073 (ปี 2556-2561) | - |
| Carbon Credit | ||||
| Purchase of Removal Carbon Credits from GC Estate Company Limited | GC purchased additional carbon credits from GC Estate Company Limited as an inventory in accordance with GC’s Decarbonization Roadmap. | - | 3,232 | - |
Remarks:
1 Based on the carbon sequestration assessment guidelines for mangrove and terrestrial forests, established by the Thailand Greenhouse Gas Management Organization (TGO).
2 Carbon sequestration potential value of Mae Fah Luang Foundation under Royal Patronage.
3 Calculated from an area of 600 rai (from total area >2,500 rai) and 2013-2018 carbon dioxide calculations. The project has been recognized as a Low Emission Support Scheme (LESS) from the Thailand Greenhouse Gas Management Organization (TGO)
As a result of diverse greenhouse gas emissions reduction projects, GC’s cumulative greenhouse gas emissions reduction is as follows:
Cumulative greenhouse gas emissions reduction between 2022 - 2025:
tons CO2 equivalent
Engagement with Stakeholders to Support the Transition Plan
Value chain
GC has engaged with key customers that their emissions covered a major part of the customer-related (downstream) Scope 3 emissions i.e., GC’s PCR customer. These key customers possess Categories 10 and 11 of GC’s Scope 3 emissions. The engagement focused on reducing both categories of emissions, as well as increasing awareness of carbon emission and Net Zero trend and collaborating to engage the projects. Minimized emissions by developing pallets from a post-consumer recycled (PCR) HDPE compound derived from used household plastic bags, avoiding 0.18 tCO₂e per pallet. The successful deployment of these circular pallets marks a concrete step toward a circular economy, reducing plastic waste and supporting climate action. These efforts are aligned with GC’s ambition to achieve Net Zero by 2050. Category 11, GC and the customers have plans to increase biofuels, which are methyl ester (B100) and Ethanol for their productions.
Government, public sector or civil society
GC, a member of FTI, supervises the Department of Climate Change and Environment under the Ministry of Natural Resource and Environment. They support the development of the Thailand Voluntary Emission Trading Scheme (Thailand V-ETS) to help meet the Nationally Determined Contributions (NDCs) of the Paris Agreement. GC provides greenhouse gas data and sector knowledge for the pilot phase of Thailand V-ETS, collaborating with the Thailand Greenhouse Gas Management Organization (TGO) and The Federation of Thai Industries. The scheme was tested in 15 pilot factories, with the MRV system developed based on ISO standards.
Additionally, GC participates in the Thailand Voluntary Emission Reduction Program (T-VER) and the drafting of the “White Paper – Carbon Pricing” to promote carbon pricing across all sectors. GC proactively participated in discussions on environmental and climate change policies with the government to promote projects and initiatives that support Thailand’s low carbon economy transition in line with Thailand’s NDC and the Paris Agreement such as discussions to drive the Bio-Circular-Green Economy model which focuses on resource efficiency and circularity in the biochemicals sector, including the carbon pricing projects. GC has applied the Internal Carbon Price mechanism as a tool to help assess the impact of business projects from increasing or reducing the amount of greenhouse gas emissions, as well as drive new greenhouse gas reduction projects.
Assessment of social implications of the transition plan
GC recognizes that its industrial and climate transition including the shift toward circular and specialty chemical businesses has direct social implications for its workforce. The Company has assessed these implications and developed corresponding actions to mitigate negative impacts and support employee adaptation.
Corresponding actions:
- 5 Key Capabilities Program (2025–2027): Reskilling initiative launched in 2025 covering Digital, Innovation, Global Acumen, Sales & Marketing, and Sustainability (including climate change impact literacy), designed specifically to prepare employees for and mitigate negative effects of industrial and climate transition
- Transition Program for Retiring and Terminated Employees and Happy Retirement Journey Program: structured support for employees exiting the workforce due to transition-related role changes
- Digital Transition Program and dEX | SPARK (Data Science and Engineering Program): capability building for employees moving into digitally-enabled and data-driven roles
- Leadership Acceleration Program and Leadership Development Program: targeted development for Talent and Successor groups to ensure leadership continuity through the transition period
- PI-ChEPS (Productivity Improvement and Innovative Creation Training): technical reskilling grounded in chemical engineering practice, supporting employees adapting to evolving operational requirements
- Programs extend to both full-time and contractual employees, broadening the scope of protection beyond permanent staff alone