In response to growing demand for agriculture-based credits, pre-orders for the 2026 issuance have now commenced
Green Carbon Inc. (CEP: Jun Okita; “Green Carbon”), a company engaged in the development and sale of nature-based carbon credits, hereby announces the complete sell-out of approximately 65,000 tCO₂e of J-Credits generated within Japan by the Company in accordance with the methodology for the “Extension of the Mid-Season Drainage Period in Rice Cultivation” (*1).
These credits contribute to greenhouse gas emissions reductions through the mitigation of methane emissions from paddy fields. They have been highly valued by a wide range of corporate customers for their domestic agricultural origin, high level of traceability, and reliability under the J-Credit Scheme, leading to widespread adoption. As a result, all available credits were sold out within a short period following the start of reservations.
In recent years, amid the advancement of Green Transformation (GX) initiatives and increasing attention to supply chain emissions management (Scope 3), demand has continued to grow for domestically sourced and highly effective carbon credits. Within this context, agriculture-based credits have been gaining particular attention.
○For inquiries regarding this press release and for further details, please contact
○To download Green Carbon Co., Ltd.’s company profile, please visit
◆ Outlook for Future Credit Supply and Advance Reservations
In recent years, amid the promotion of Green Transformation (GX) initiatives, efforts to address supply chain emissions (Scope 3), and ongoing discussions and transitions related to domestic systems such as the GX-ETS, the regulatory environment surrounding carbon credits and their future outlook have become increasingly difficult to predict. In particular, toward the end of 2025, a draft of the Act on the Promotion of a Smooth Transition to a Decarbonized Growth-Oriented Economic Structure (hereinafter referred to as the “GX Promotion Act”) is expected to be released. Under this draft, companies with annual emissions exceeding 100,000 tons are expected to be subject to discussions on mandatory measures, including offsetting emissions shortfalls against reduction targets through emissions allowances or carbon credits, and, where such measures are not feasible, the imposition of penalties.
As a result, inquiries from corporate customers have been increasing regarding questions such as “which credits should be procured, when, and how,” as well as “how to prepare for potential future regulatory changes.”
In response to the recent sell-out, Green Carbon has established a framework to ensure a stable supply of credits in and beyond the next fiscal year. The Company has now begun accepting advance reservations for J-Credits scheduled for approval from June 2026 onward.
Given the anticipated challenges in procuring credits and emissions allowances following the enactment of the GX Promotion Act, Green Carbon will provide flexible support through consultations covering early reservations, long-term contracts, and various credit procurement strategies.
| paddy field–derived | extension of the mid-season drainage period | approximately 100,000tCO₂e |
| dairy farming–derived | Change in Livestock Manure Management Practices (AG-002) (*2) | approximately 7,000 tCO₂e |
※Please note that the volume of credits is subject to change.
The previous issuance of mid-season drainage credits attracted a high volume of inquiries immediately after reservations opened, resulting in a rapid sell-out. Accordingly, for credits to be issued in the next fiscal year, Green Carbon strongly recommends early consultations and advance reservations for companies seeking to secure a reliable supply.
In addition to advance reservations for credits scheduled for issuance in 2026, there may be cases in which introductions can be arranged through Green Carbon under certain conditions at the present time. For further details, please contact us.
◆ Notice of Early Reservation Discount
Customers who reserve credits scheduled for issuance in 2026 by the end of March 2026 will be eligible for an early reservation discount.
Details regarding discount conditions, eligible volumes, and other terms will be provided individually. Please feel free to contact us for further information.
Contact: info@green-carbon.inc
＼Registration Now Open for Japan’s Largest Carbon Credit–Focused Forum on February 3／
— From Decarbonization as an “Initiative” to a Core Corporate Strategy —
One of Japan’s largest carbon credit–focused forums, the Carbon Credits Journal Forum, will be held on Tuesday, February 3, 2026, at Tokyo International Forum, Hall B7 (direct access from Yurakucho Station).
This forum has been organized in response to the accelerating momentum of decarbonization and Green Transformation (GX). It will spotlight large corporations, local governments, government-related organizations, and startups engaged in the creation, utilization, investment, and institutional design of carbon credits, providing a platform for practical, hands-on discussions.
More than 1,000 leading decarbonization stakeholders from Japan and abroad are expected to gather, offering a unique opportunity to exchange views and discuss the future of carbon credits.
To register for the forum, please click here.
For the event’s dedicated website, please click here.
We will continue to share updates on participating speakers and additional information—please stay tuned.
◆ Green Carbon ,Inc.
Representative: Jun Okita, CEO
Head Office: PREX North 9F, 2-3-2 Kojimachi, Chiyoda-ku, Tokyo, Japan
Established: December 2019
Business Activities: Development and sales of carbon credits, agriculture-related projects, environmental projects, other related businesses, and ESG consulting
Website: https://green-carbon.co.jp/en/
◆ About Green Carbon
Guided by the vision of “Harnessing the power of life to save the Earth,” Green Carbon develops and supports projects that generate, register, and sell nature-based carbon credits both in Japan and abroad. The company is also engaged in agriculture-related businesses, R&D initiatives, and ESG consulting.
Its business activities span Japan, Southeast Asia, Australia, and South America, creating credits from rice paddies, biochar, forest conservation, carbon farming, mangrove planting, and cattle methane reduction. In Japan, Green Carbon obtained certification in FY2023 for the country’s first and one of the largest-scale rice paddy J-Credit projects (approx. 6,220 t). In FY2024, the company plans to expand this initiative to around 40,000 ha (approx. 80,000 t).
Green Carbon also provides “Agreen,” a one-stop platform service that streamlines the entire process of credit registration, application, and sales. By simplifying procedures and documentation, the service reduces the administrative burden on credit creators.
◆Green Carbon’s 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
note ：https://note.com/green_carbon/