The EVENT CARBON SIMULATOR, a carbon calculator developed through the collaborative efforts of the event industry, is now in operation.

A working group for operations, comprised of 15 JACE member companies, has been established and has begun field trials.

NOMURA Co.,Ltd. Ltd., in collaboration with development partner companies affiliated with the Japan Event Industry Promotion Association (JACE), has completed the development of the main functions of "EVENT CARBON SIMULATOR," an industry-standard carbon calculator for event activity processes, which has been under development since June 2025. Following this, a "Works Working Group" has been formed with 15 JACE member companies, and we are pleased to announce that we have begun trial operation in preparation for a future public release.

[Background of Development: Responding to Sustainability Disclosure and Industry Challenges]
Following the Sustainability Standards Board of Japan's (SSBJ) phased implementation of mandatory information disclosure starting in the fiscal year ending March 2027, understanding and disclosing companies' greenhouse gas (GHG) emissions has become an unavoidable management issue. In particular, disclosure of the entire supply chain (Scope 3) is expected to be included in the future, and discussions on establishing standards for this are beginning in various forums.

In the event industry, too, securing quantitative and objective evidence (basis for calculation) that can withstand future disclosure requests has become an urgent issue in these uncertain circumstances. Against this backdrop, this calculator was designed with the utmost priority on consistency and reproducibility of calculations, taking a comprehensive view of the process from planning and production to the actual event and its conclusion, ensuring that "the same results are obtained regardless of who performs the measurement."

[Main features of the EVENT CARBON SIMULATOR]
• High-precision calculation based on "weight"
Instead of the conventional "monetary basis" method, which has a large margin of error, we have adopted a calculation method that is based on "weight," which reduces calculation errors. This makes it possible to provide more objective and transparent evidence (basis for calculation).

Establishment of industry standard rules
Instead of relying on individual company standards, a common calculation rule for the industry will be established through JACE. This rule is based on the "SUSTAINABLE ENGINE CARBON SIMULATOR" launched by Hakuhodo Products Inc. in June 2024. This will enable comparative analysis across events and the setting of reduction targets for the entire industry.

[Future Roadmap]
We will begin trial operation in April 2026, verifying usability and accuracy based on actual field data. We will continue our efforts with the goal of making it publicly available in the future, incorporating the results of this trial.

[Vision of the Operations Working Group]
Through this calculator, we aim to create a healthy competitive environment where companies in the event industry can compete on a level playing field, striving to reduce environmental impact and improve concept design quality. By elevating sustainability initiatives from individual company efforts to industry standards, we will contribute to fostering a sustainable event culture.
 

List of Participating Companies (in alphabetical order)
・ Art Freak Co., Ltd.　
Location: PMOEX Nihonbashi Kayabacho 9F, 2-12-10 Nihonbashi Kayabacho, Chuo-ku, Tokyo
Representative: Takuya Komada, Representative Director

・ Izumi Senkosha Co., Ltd.　
Location: 6-22-6 Nishi-Nippori, Arakawa-ku, Tokyo
Representative: Shintaro Oku, Representative Director

・ ADK Creative One Inc.　
Location: Toranomon Hills Mori Tower, 1-23-1 Toranomon, Minato-ku, Tokyo
Representative: Kenji Morinaga, Representative Director

・ Zeal Associates Co., Ltd.　
Location: 8F, JRE Ginza 1-chome East Building, 1-19-7 Ginza, Chuo-ku, Tokyo
Representative: Daisuke Nagato, Representative Director President and CEO

・ JTB Communication concept design Co., Ltd.　
Location: 12th Floor, Celestine Shiba Mitsui Building, 3-23-1 Shiba, Minato-ku, Tokyo
Representative: Takayuki Fujiwara, Representative Director President and CEO

・ Tanseisha Co., Ltd.　
Location: Shinagawa Season Terrace 19F, 1-2-70 Konan, Minato-ku, Tokyo
Representative: Osamu Kobayashi, Representative Director President

・ TOW Co., Ltd.　
Location: 3F Hulic Kamiyacho Building, 4-3-13 Toranomon, Minato-ku, Tokyo
Representative: Kenichi Muratsu, Representative Director

・ Dentsu Live Inc.　
Location: Dentsu Head Office Building, 1-8-1 Higashi-Shinbashi, Minato-ku, Tokyo
Representative: Masato Nakamura, Representative Director President and CEO

・ Togashi Co., Ltd.　
Location: Sumitomo Shintomi Building 2F, 2-14-4 Shintomi, Chuo-ku, Tokyo
Representative: Representative Director, Morikatsu Yoshida

・ NOMURA Co.,Ltd. Co., Ltd.　
Address: 2-3-4 Daiba, Minato-ku, Tokyo
Representative: Kiyotaka Okumoto Representative Director President and CEO

・ Hakuhodo Products Inc.　
Location: NBF Toyosu Garden Front, 5-6-15 Toyosu, Koto-ku, Tokyo
Representative: Masakazu Hashimoto, Representative Director

・ Fujiya Co., Ltd.　
Location: 7-4, Higashi Horikawa-dori, Marutamachi-sagaru, Nakagyo-ku, Kyoto City
Representative: Tomoyuki Nagata, Representative Director

・ Mash Co., Ltd.　
Location: 7F, Commercial Building, 5-6-10 Toyosaki, Kita-ku, Osaka City
Representative: Yoshiki Mato, Representative Director

・ Murayama Co., Ltd.　
Location: Toyosu Foresia, 3-2-24 Toyosu, Koto-ku, Tokyo
Representative: Tomasa Saiki, Representative Director

・ Ray Co., Ltd.　
Location: Harks Roppongi Building, 6-15-21 Roppongi, Minato-ku, Tokyo
Representative: Yoichi Isobe, Representative Director

*This information is current as of the date of announcement. Please note that it may differ from the date of search.