Sharing partnerships and achievements toward generating CDR credits in Southeast Asia
Green Carbon Inc. (President: Jun Okita, hereafter “Green Carbon”), which develops nature-based carbon credit generation and sales businesses, is pleased to announce that it participated in ASEAN’s largest comprehensive exhibition on renewable energy and decarbonization technologies, “ASIA Sustainable Energy Week (ASEW 2025),” held in Bangkok, Thailand from July 2 to 4, 2025, by giving a presentation and hosting an exhibition booth.
In addition, Green Carbon was specially invited as a guest speaker at the official side event of the exhibition, the specialized seminar “Biochar Success Case & Business Matching” (organized by WETA), where it presented its achievements and collaborations related to biochar (CDR credit) generation in Southeast Asia.
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| 〇 You can download the company profile of Green Carbon Inc. here |
〇 Video summarizing the event day in Thailand
◆Event Overview
ASEW 2025 was an ASEAN regional exhibition and conference focused on renewable energy, energy efficiency, and energy storage. It was organized by Informa Markets, an international exhibition organizer in Asia, and held from July 2 to 4, 2025, at the Queen Sirikit National Convention Center (QSNCC) in Bangkok, Thailand.
- Exhibition Name: ASEAN Sustainable Energy Week 2025 (ASEW 2025)
- Date: Wednesday, July 2, 2025
- Venue: Queen Sirikit National Convention Center (QSNCC), Bangkok, Thailand
- Organizers: WETA (Waste to Energy Trade Association), Informa Markets
- Participants: Over 1,500 companies exhibited, with approximately 28,000 visitors
- URL: ASEAN Sustainable Energy Week 2025
〇 Event Brochure
◆ Background of Participation and Green Carbon’s Presentation at the Event
Green Carbon has been working on nature-based carbon credit generation projects mainly in Southeast Asia, covering a wide range of fields such as forest conservation, rice paddies, mangrove reforestation, reduction of cattle methane emissions, and biochar projects. By developing carbon credit projects tailored to the characteristics of local natural resources and utilizing satellite data for site selection and monitoring, the company ensures efficient and highly transparent project management.
In particular, Green Carbon focuses on carbon credit projects in Thailand using AWD (Alternate Wetting and Drying) irrigation technology and biochar. Agriculture is not only a key industry for Thailand’s GDP but also a sector heavily affected by climate change. By introducing Green Carbon’s technologies, the company aims to improve agricultural sustainability while revitalizing the carbon credit market in Thailand.
One notable example is the AWD-based methane reduction project in rice paddies in Kamphaeng Phet Province, northern Thailand, which has been officially listed under the “Premium T-VER” program—a high-quality voluntary credit scheme promoted by the Thai government—as the first and largest project by a Japanese company in Thailand.
Based on these achievements, the Federation of Thai Industries (FTI) invited Green Carbon to participate in the seminar as a “partner with expertise in decarbonization both domestically and internationally.”
The biochar seminar (hereafter referred to as “this seminar”), where Green Carbon was invited to speak, was part of the official ASEW program. Its purpose was to introduce advanced biochar utilization cases and facilitate partner matching among technology providers, companies, and researchers from across Asia. In Thailand, interest in biochar utilization and credit generation has been growing among companies and agricultural organizations in recent years; however, there are only a limited number of companies with experience in international credit markets and registration.
〇Presentation Content:
Green Carbon delivered a presentation on the following themes:
| ●Types of Carbon Credits & Global Market Trends |
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| An overview was provided on the mechanisms and scope of various schemes such as JCM, VCS (Verra), Puro.earth, and Isometric※3, along with corporate procurement trends (including GAFAM). In addition, insights were shared on GX-ETS (Japan’s emissions trading system), the introduction of carbon taxes, current regulations, price fluctuations, and future outlooks. |
| ●Price ranges of various carbon credits and the advantages of biochar |
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| An overview of how biochar (CDR) credits are traded at higher prices (over USD 150) compared to forestry or renewable energy credits was presented. The discussion also covered international buyers’ evaluation criteria and the growing expectations for removal-type credits. |
| ●International Expansion Case Studies of Green Carbon |
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| International Expansion Case Studies by Green Carbon India: Established a production system capable of producing 12,000 tons of biochar annually, with plans to generate over 440,000 tons of carbon credits by 2040. Philippines: Shared details of ongoing biochar projects and collaborations. Thailand: Announced the signing of an MOU with RAOT to develop rubberwood-based biochar initiatives. For more information, see the following related resources: Green Carbon India biochar production and credit plan Green Carbon Philippines & Thailand project details |
| ●Synergy with AWD Rice Paddy Projects |
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| In Thailand, where methane emissions from rice paddies account for the majority of agricultural GHG emissions, Green Carbon is extensively implementing large-scale AWD projects in various countries. The company also proposed the potential of combined credit generation through the “Biochar + AWD” approach, as well as improving farmers’ crop yields. |
〇Green Carbon’s Harada speaking at the event
〇Scenes from the panel discussion
◆ Future Outlook
Green Carbon is currently in the process of establishing a local subsidiary in Thailand. Focusing on projects such as methane emission reduction from rice cultivation through AWD implementation, as well as biochar production, sales, and credit generation utilizing agricultural residues, the company aims to contribute to climate change mitigation and increase farmers’ incomes. Its ultimate goal is to create a “world-class carbon reduction model originating from Asia” starting from Thailand.
In the Kingdom of Thailand, greenhouse gas emissions from the agricultural sector—particularly methane emissions from rice cultivation—are positioned as one of the top national priorities for climate action. With initiatives like the Premium T-VER program by TGO (Thailand Greenhouse Gas Management Organization) and the promotion of AWD technology by the Ministry of Agriculture and Cooperatives (MoAC), the development of decarbonization models starting from rice paddies is accelerating at the national level.
Going forward, Green Carbon plans to expand step by step in major agricultural provinces such as Phitsanulok, Ayutthaya, and Nakhon Ratchasima, aiming to cover 1.5 million hectares. Through collaboration with investors, corporations, and government agencies in Thailand and beyond, the company seeks to develop one of the largest rice-paddy-based decarbonization projects in Asia.
〇About the Projects in Thailand
Going forward, Green Carbon will focus on establishing a three-pronged model that combines carbon sequestration, soil improvement, and farmer benefits mainly in Southeast Asia, while fully scaling up the issuance of biochar CDR credits. In particular, it aims to pursue the following initiatives:
| · Establishing an appropriate biochar model utilizing local resources (such as rubberwood and rice husks) · Creating hubs through collaboration with RAOT, agricultural universities, local governments, and private companies · Selling credits via international platforms such as Puro.earth · Designing schemes that consider initial investment models and direct transactions with large corporations |
In Thailand in particular, Green Carbon signed an MOU with the Rubber Authority of Thailand (RAOT) in 2024 and has since been scaling up projects to convert unused resources—such as pruned branches and felled trees from rubber plantations nationwide—into biochar.
Going forward, the key focus areas will include:
| ●Development of Biochar CDR Hubs through Collaboration with the Rubber Industry |
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| In collaboration with RAOT, cooperatives, fertilizer companies, universities, and local governments, Green Carbon aims to utilize the annual volume of pruned wood generated during the six years following rubber tree felling (up to 15 million tons per year) to build a regional circular economy model. |
| ●Balancing Regional Economic Development and Decarbonization through the Utilization of Agricultural Residues |
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| Promoting integrated biochar projects that effectively utilize pruned wood, rice husks, palm shells, and other agricultural residues generated by farmers to simultaneously achieve farmer income enhancement, soil improvement, and greenhouse gas reduction. |
| ●Registration with international certification bodies such as Puro.earth and sales in the CDR market |
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| The biochar produced will be converted into credits on the Voluntary Carbon Market (VCM), with the aim of selling them to RE100 member companies and overseas CDR funds. |
| ●Integrated Model with AWD (Alternate Wetting and Drying) |
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| A plan is underway to develop a “decarbonization credit generation model utilizing entire farmlands” by combining methane reduction from rice paddies through AWD with CDR from biochar. |
※1: Alternate Wetting and Drying (AWD)
AWD is a rice paddy irrigation method in which water is alternately supplied and naturally dried every few days based on the water level in the field. Compared to continuous flooding, AWD reduces water usage and helps conserve water resources.
※2: Premium T-VER
A high-quality voluntary credit scheme promoted by the Thai government. It issues reliable carbon credits for companies and municipalities through strict monitoring, verification, and registration procedures in compliance with international standards.
※3: Isometric
Isometric is a carbon credit quality assessment and registration platform based in California, USA. It specializes in carbon removal (CDR) credits and verifies and issues credits based on proprietary methodologies that emphasize scientific rigor and traceability. It is gaining attention as a new-generation credit standard alongside Puro.earth and Verra.
◆ Green Carbon Inc.
Representative: Jun Okita, President & CEO
Head Office: Hanzomon PREX North 9F, 2-3-2 Kojimachi, Chiyoda-ku, Tokyo
Established: December 2019
Business Activities: Carbon credit generation and sales, agriculture-related businesses, environmental projects, other related businesses, and ESG consulting services
Website: https://green-carbon.co.jp/
◆Green Carbon Business Overview
Green Carbon operates with the vision of “Saving the Earth through the power of life,” offering end-to-end support for the creation, registration, and sales of nature-based carbon credits both domestically and internationally. In addition, the company is engaged in agriculture-related businesses, R&D projects, and ESG consulting services.
Its business footprint spans Japan and Southeast Asia, extending to Australia and South America, generating nature-based carbon credits from rice paddies, biochar, forest conservation, carbon farming, mangrove reforestation, and methane reduction from livestock.
In Japan, Green Carbon obtained the first and largest-ever J-Credit certification for rice paddies in 2023 (approximately 6,220 tons), and expanded the project to around 40,000 hectares (about 80,000 tons) in 2024.
Green Carbon also provides “Agreen”, a one-stop platform that streamlines the entire process from credit registration and application to sales, simplifying procedures and documentation while significantly reducing the workload for credit creators.
◆Green Carbon Inc. Official Social Media:
Carbon Credits Journal：https://biz-journal.jp/carboncredits/
Linkedin ：https://www.linkedin.com/company/green-carbon-inc/
Facebook：https://www.facebook.com/profile.php?id=61557429326458
X ：https://mobile.x.com/GreenCarbon2019
Wantedly：https://www.wantedly.com/companies/greencarbon2019
Youtube ：https://www.youtube.com/channel/UCYO4WnGOHDaVB1ikxheZasA