IHI Corporation, commonly referred to as IHI, is a prominent Japanese engineering company headquartered in Tokyo, Japan. Established in 1853, IHI has evolved into a leader in the industrial sector, focusing on diverse areas such as aerospace, energy, and social infrastructure. The company is renowned for its innovative solutions in turbine manufacturing, plant engineering, and construction services. With a strong presence in Asia, Europe, and North America, IHI has achieved significant milestones, including advancements in gas turbine technology and contributions to major infrastructure projects. Its core offerings, characterised by cutting-edge technology and sustainability, set IHI apart in a competitive market. The company’s commitment to excellence has solidified its position as a key player in the global engineering landscape, making it a trusted partner for various industries.
How does Ihi's carbon action stack up? DitchCarbon scores companies based on their carbon action and commitment to reducing emissions. Read about our methodology to learn more.
Mean score of companies in the Machinery and Equipment industry. Comparing a company's score to the industry average can give you a sense of how well the company is doing compared to its peers.
Ihi's score of 58 is higher than 75% of the industry. This can give you a sense of how well the company is doing compared to its peers.
In 2023, IHI Corporation reported total greenhouse gas emissions of approximately 211,970,000 kg CO2e, which includes 65,033,000 kg CO2e from Scope 1 and 146,937,000 kg CO2e from Scope 2. The company also disclosed significant Scope 3 emissions, totalling about 403,575,000,000 kg CO2e, primarily from the use of sold products (398,165,000,000 kg CO2e) and purchased goods and services (5,130,000,000 kg CO2e). IHI has set ambitious climate commitments, aiming for a 46% reduction in CO2 emissions by 2030 compared to fiscal 2013 levels, in line with the Japanese government's targets. Additionally, the company pledges to achieve carbon neutrality across its entire value chain by 2050. In fiscal 2023, IHI's Board of Directors established a goal to halve GHG emissions (Scope 1 and 2) from 2019 levels by 2030. The company has also committed to reducing energy intensity by at least 3% by 2021 compared to 2018 levels. These initiatives reflect IHI's proactive approach to addressing climate change and reducing its carbon footprint.
Access structured emissions data, company-specific emission factors, and source documents
| 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Scope 1 | - | - | - | - | - | 00,000,000 | 00,000,000 | 00,000,000 | 00,000,000 | 00,000,000 | 00,000,000 |
| Scope 2 | - | - | - | - | - | 000,000,000 | 000,000,000 | 000,000,000 | 000,000,000 | 000,000,000 | 000,000,000 |
| Scope 3 | - | - | - | - | - | - | 000,000,000,000 | 000,000,000,000 | 000,000,000,000 | 000,000,000,000 | 000,000,000,000 |
Ihi's Scope 3 emissions, which increased by 119% last year and decreased by approximately 54% since 2019, demonstrating supply chain emissions tracking. Nearly all of their carbon footprint comes from suppliers and value chain emissions, representing nearly all emissions under the GHG Protocol, with "Use of Sold Products" being the largest emissions source at 99% of Scope 3 emissions.
Climate goals typically focus on 2030 interim targets and 2050 net-zero commitments, aligned with global frameworks like the Paris Agreement and Science Based Targets initiative (SBTi) to ensure alignment with global climate goals.
Ihi has not publicly committed to specific 2030 or 2050 climate goals through the major frameworks we track. Companies often set interim 2030 targets and long-term 2050 net-zero goals to demonstrate measurable progress toward decarbonization.

