PARTNER CONTENT
NIKKEI GX Conference
COP30 BRAZIL AMAZONIA BELÉM 2025

NIKKEI GX Conference brings Japanese perspective on environmental stewardship to Brazil

A Nikkei-coordinated project launched in 2021 brings together representatives of industry, academia, the public sector, and journalism to promote green transformation (GX). Representatives of that project, the NIKKEI GX Conference, articulate their approach to promoting GX in presentations at the annual UN Framework Convention on Climate Change (UNFCCC) conferences. They made their presentation on November 18 at this year’s UNFCCC conference—COP30—in Belém, Brazil.

Hirotaka Ishihara

Hirotaka Ishihara

Yukari Takamura

Yukari Takamura

Mimi Nameki

Mimi Nameki

Leading off the NIKKEI GX Conference presentation was a greeting from Japan’s Minister of the Environment Hirotaka Ishihara. He reiterated Japan’s commitment to achieving carbon neutrality by 2050 and lauded the NIKKEI GX Conference for its contributions to fulfilling that goal.

“Climate action is an urgent global challenge for all humanity,” emphasized Ishihara. The parties to the Paris Agreement agreed at the 2015 UN Climate Change Conference (COP21), he noted, to strive to cap the increase in the average global temperature at 1.5 degrees Celsius above the preindustrial level. “To that end, we agreed to submit targets for reductions in greenhouse gas emissions and report biennially on our progress toward attaining those targets,” Ishihara continued. “Adhering to that cycle is crucially important. All Japanese stakeholders, including those in the private sector, need to work steadily toward fulfilling the reductions that the Japanese government pledged in February 2025.

“The NIKKEI GX Conference is an outstanding initiative by Japanese companies and experts, leading the way in decarbonization. Also impressive are the superior Japanese technologies on display here at the Japan Pavilion for deploying renewable energy, raising energy efficiency, adapting to climate change, and circulating resources. Let this seminar be a springboard for sharing Japan’s advanced initiatives with the world.”

Yukari Takamura, a professor at the University of Tokyo’s Institute for Future Initiatives and the chairperson of the NIKKEI GX Conference, next provided an overview of that undertaking. “We started this conference as the Nikkei Net-Zero Project in 2021,” recalled Takamura, “and transformed it last year into the NIKKEI GX Conference. Decarbonization remains the core activity of this conference, but we see a lot of interlinkage between decarbonization and other challenges, such as protecting nature, shaping a circular economy, and enhancing the competitiveness of Japanese businesses.” Takamura expressed her expectation that the event would show that leading Japanese businesses have stepped up efforts to tackle these challenges holistically toward a sustainable and green transformation.

The presentation continued with a greeting from Mimi Nameki, the director for international cooperation for decarbonization and sustainable development infrastructure in the Japanese Ministry of the Environment’s Global Environment Bureau. She then engaged in an exchange with Takamura and with Kiyoshi Ando, a senior staff writer in Nikkei’s Editorial Division. The three discussed the progress of the COP30 negotiations and Japanese expectations of the Belém conference.

“Let me share three emphases for Japan,” opened Nameki, “at COP30. The first is to make the most of this great opportunity to use new nationally determined contributions as catalysts for concrete climate action. A growing number of nations have pledged contributions, but the number of nations yet to make such pledges remains large. We need to get more pledges.

“Japan’s second emphasis is on discussing adaptation indicators. That needs to include discussing indicators for adaptation finance through international cooperation, through national budgets, and through private finance. Our third emphasis is on eliciting proactive stances from nations in discussing financing for measures to curtail climate change. Japan will focus on these three emphases in working to help reach an agreement here.”

Corporate presentations

Tadashi Yamamoto

Tadashi Yamamoto

Toma Yamasaki

Toma Yamasaki

Sumihito Sekine

Sumihito Sekine

Tadashi Yamamoto spoke on behalf of Osaka Gas, a member company of the NIKKEI GX Conference. He serves as the deputy senior general manager of the company’s Energy Resources and Carbon Neutral Business Department. Yamamoto discussed the decarbonization of thermal energy consumption through e-methane, which is one of the three pillars of Osaka Gas’s net-zero initiatives under METI’s S+3E criterion. “E-methane,” emphasized Yamamoto, “is net carbon neutral, emitting no more carbon when consumed than is captured during its production. Additionally, it can be delivered though the existing gas infrastructure without requiring additional social investments, thanks to its compatibility with conventional natural gas.” He presented e-methane demonstration projects in Japan and concluded with remarks about the company’ global initiatives, including the e-NG Coalition.

Also speaking at the NIKKEI GX Conference decarbonization presentation was e-dash CEO Toma Yamasaki. e-dash is a climate-tech start-up established in 2022 with the mission of accelerating the transition to decarbonization. That transition, Yamasaki observed, has transformed from a facet of corporate social responsibility to a core management imperative.

“We help companies of all sizes address their core responsibility for curtailing climate change,” explained Yamasaki. “Our support centers on providing crucial solutions to steer the companies through a four-step process: visualization of emissions, reporting, emission reduction, and transparent information disclosure.” e-dash, according to Yamasaki, is also the company chosen by the most Japanese financial institutions for that purpose. “We work with 220 financial institutions and local governments,” he explained, “to support small and medium-sized enterprises.”

Next up at the presentation was Earth hacks CEO Sumihito Sekine. Earth hacks is a joint venture between the advertising agency Hakuhodo and the trading house Mitsui & Co. Its founders established the company to advance consumer-driven GX, especially by empowering younger generations, such as Generation Z. Sekine outlined the company’s approach and its unique methodology.

“Households,” Sekine noted, “account for roughly 61% of Japan’s consumption-based greenhouse gas emissions. At Earth hacks, we focus on making decarbonization fun and accessible, rather than a burden. Our Decarbo Score visually renders the greenhouse gas (GHG) emissions associated with a product or service in an intuitive way. We also provide tools that help individuals visualize and track their own annual GHG emissions. To date, more than 300 companies have adopted the Decarbo Score across more than 1,200 products and services.”

COP30 japan pavilion

Video messages

NYK Line

NYK Line

A video message from NYK Line detailed the company’s commitment to eliminating greenhouse gas emissions, including indirect emissions, by FY2050 and measures for achieving that goal. NYK Line was a pioneer in adopting vessels fueled with liquefied natural gas and is preparing to introduce ammonia-fueled vessels extensively in the 2030s. An NYK subsidiary began operating the world’s first commercial-use ammonia-fueled vessel in 2024.

EY Japan

EY Japan

EY Japan’s chief sustainability officer, Tokuya Takizawa, described his firm’s commitment to long-term, sustainable growth in line with EY’s purpose of “Building a better working world.” This includes halving greenhouse gas emissions by 2030 (from 2019 levels), achieving net-zero by 2050, and expanding goals beyond carbon to address water, waste, and air quality.

NGK Insulators

NGK Insulators

NGK Insulators is eyeing carbon neutrality in its operations by 2050, announced its president, Shigeru Kobayashi. And he introduced NGK technologies for advancing carbon neutrality in society at large. Kobayashi announced that NGK Insulators will change its name to NGK Corporation as of April 2026. That reflects NGKs contribution to advancing carbon neutrality in society through numerous solutions beyond its founding product line.

Seven & i Holdings

Seven & i Holdings

Speaking for Seven & i Holdings was Nobuyuki Miyaji, the head of the company’s Sustainability Development Office. He discussed Seven & i’s measures for reducing emissions of greenhouse gases through its operations and through its interaction with suppliers, as in logistics. Seven & i communicates with 20 million consumers a day through its Japanese outlets and strives through its products and messaging to heighten awareness of the need for decarbonization.

GreenEnergy & Company

GreenEnergy & Company

GreenEnergy & Company’s President Takafumi Suzue explained how his company nurtures regional economic sustainability with Micro GX solutions based on photovoltaic generation and other renewable energies. The company has deployed more than 5,000 installations owned by individuals and small companies. That has included devising frameworks centered on storage nodes for power grids to provide reliable electric power.

Nikkei GX Conference corporate members

JERA
NYK LINE
EY
Daigas
MITSUI FUDOSAN
e-dash
SEVEN&i
R&I
NGK INSULATORS
ABeam Consulting
SMAS
Green Energy
MIZUHO
Earth Hacks
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