Approximately 80–90% of CO2 emissions over the life cycle of construction equipment occur during product operation. Against this background, Komatsu has worked to reduce CO2 emissions during product operation through three approaches: “DANTOTSU Products,” “DANTOTSU Service” and “DANTOTSU Solutions.”
Komatsu reduces CO2 emissions from its products by providing products that incorporate electrification and deliver superior fuel efficiency.
Under the “GX Construction Machinery Certification System,” established by Japan’s Ministry of Land, Infrastructure, Transport and Tourism to promote decarbonization at construction jobsites through the wider adoption of electric construction equipment, a total of nine models of battery-powered and cable-powered electric hydraulic excavators have been certified as of April 2026. Based on this system, Komatsu classifies the certified products as its sustainable products.
Komtrax, a machine operation management system, automatically collects operating data and machine health data from construction equipment operating around the world and enables the equipment to be remotely monitored, managed and analyzed. It visualizes machine operating hours, working hours, usage patterns and fuel consumption and provides this information to customers via the internet, helping them reduce fuel consumption and, consequently, CO2 emissions.
In 2013, Komatsu introduced the D61PXi-23, the world’s first ICT bulldozer equipped with automatic blade control, in North America, Europe and Japan. In 2014, Komatsu introduced the world’s first hydraulic excavators equipped with semi-automatic control: the PC210LCi-10 in North America and Europe and the PC200i-10 in Japan. Calculations based on data from in-house test construction using an ICT hydraulic excavator showed that the PC200i-10 reduced fuel consumption by approximately 30% in embankment slope shaping work. Similarly, calculations based on data from in-house test construction using an ICT bulldozer showed that the D61PXi-23 reduced fuel consumption by approximately 25% in spreading and leveling work, demonstrating that ICT bulldozers, like ICT hydraulic excavators, can reduce CO2 emissions.
Komatsu deploys Smart Construction, which combines this ICT construction equipment with solutions such as surveying current terrain conditions using drones and 3D scanners to improve work efficiency and visualize processes at construction jobsites.
Komatsu has set a target of reducing CO2 emissions per unit of work from the operation of its products—including construction equipment, mining equipment and forestry machinery—by 50% by FY2030 compared with FY2010.
To assess progress toward this target, Komatsu compares the performance of products in each fiscal year with that of products in the base year, FY2010, and estimates the contribution to CO2 reductions from improvements in fuel efficiency and work efficiency. The assessment showed that products in FY2025 achieved a 23% reduction in CO2 emissions per unit of work compared with the base year.
CO2 emission index during product operation
This product maintains the same working range as the PC30E-6, launched in October 2023, while achieving a more compact rear body and reduced machine weight through the use of a smaller battery. These improvements enhance operability in confined spaces and ease of transportation. Its JIS-compliant tight tail swing design enables safe operation during piping and indoor construction work at confined urban jobsites, as well as at larger jobsites where obstacles are located behind the machine. In addition, the reduced machine weight makes the machine easier to load onto transport vehicles than the PC30E-6.
As part of its efforts to address climate change, Komatsu promotes activities to reduce CO₂ emissions, using CO₂ emissions per unit of internal manufacturing value as a key indicator. These activities cover all energy used in research, development, and production at its global locations, including electricity, fuel gas, and fuel oil.
In FY2025, energy-saving improvements focused on energy-intensive plants in Japan and overseas (such as those for casting, forging, heat treatment, and machining), the expansion of solar and biomass power generation facilities, and increased purchases of green electricity overseas resulted in a significant reduction in our CO₂ emissions. Additionally, the share of renewable energy in electricity use increased to 36%.
Since FY2021, Komatsu has adopted internal carbon pricing (ICP), set at USD 300 per ton of CO₂,* and has used it in making investment decisions on energy-saving measures for Scope 1 and 2 emissions and renewable energy facilities. This promotes environmental investments based on cost-effectiveness analysis and supports the identification and capture of opportunities to decarbonize production activities.
| Item | FY2025 | Target of FY2030 |
|---|---|---|
| CO2 emissions index (compared to FY2010) | 52 | 50 |
| The rate of renewable energy use | 36％ | 50％ |
Energy related CO2 emissions
The amount and ratio of renewable electricity
Energy consumption
At Komatsu America Corp.’s Peoria Plant in Illinois, a new energy-efficient office building was constructed to support Komatsu’s long-term net-zero strategy through improved energy efficiency, the use of renewable energy, and responsible resource management. The facility has obtained LEED Silver certification*1 through measures such as the adoption of water-saving equipment and the installation of a rainwater storage system. In terms of energy efficiency, the building uses high-performance LED lighting, a daylight harvesting control system that maximizes the use of natural light, and a high-performance building envelope that reduces heating and cooling loads. In addition, solar power generation equipment has been installed on the rooftop to cover part of the building’s electricity demand with clean renewable energy. To achieve its sustainability goals, the facility also offsets the remaining energy consumption through the purchase of renewable energy certificates, aiming to achieve effectively net-zero energy in facility operations.
Komatsu UK Ltd. has also taken the next step in energy conservation at its plant by introducing on-site power generation. The newly installed solar panels have a generation capacity of more than 1,700 kW, most of which is consumed within the plant, with part of the surplus electricity supplied externally. This project is designed not only to further promote energy conservation but also to reduce costs and improve resilience to future fluctuations in energy prices.
The Komatsu Group will continue to actively pursue energy conservation at its plants, as well as energy efficiency improvements and power generation at office buildings, and will promote measures to address global warming by reducing greenhouse gas emissions.
Komatsu (Changzhou) Construction Machinery Corp. (KCCM) is actively transitioning the forklifts used on its premises to battery-powered models. While vehicle electrification has been progressing, the existing charging area became insufficient in terms of space, resulting in situations where charging work had to be carried out in cramped areas. As this raised safety concerns, including an increased fire risk, KCCM expanded the charging area to create an environment where charging can be conducted safely.
Solar panels were installed in the newly developed charging area so that renewable energy can be used to charge forklifts. In addition, a small-scale energy storage system was installed so that electricity generated by solar power can also be used at night. During the daytime, forklifts are charged with electricity generated by solar power, and surplus electricity is stored in the energy storage system. At night, the stored electricity is used for charging. This has enabled KCCM to establish a low-environmental-impact operating system that does not generate CO₂ emissions from the charging process. In addition, the energy storage system is designed to be used not only for charging forklifts but also for supplying electricity to the plant. By using stored electricity during periods when electricity rates are high, it also contributes to reducing electricity costs.
Through the introduction of equipment that integrates power generation, charging, and energy storage, KCCM has achieved multifaceted improvements, including reduced environmental impact, improved safety, and lower electricity costs.
KCCM will continue initiatives that combine the use of renewable energy with improved safety, and will promote environmental improvement activities toward sustainable business operations.
(CO2 emissions intensity per unit of cargo weight)
Komatsu is promoting modal shift to use coastal vessels and railways in domestic transportation while enhancing transportation efficiency by improving the loading ratio. Additionally, to shorten transportation distances to ports for export products, we actively use Kanazawa and Hitachinaka ports, which are located near our manufacturing sites.
In FY2025, global CO2 emissions from transportation, combining domestic and overseas operations, totaled 49.5 thousand t-CO2, representing a decrease of approximately 3% from the previous fiscal year.
Komatsu will continue to improve transportation efficiency in Japan and overseas and work to reduce CO2 emissions associated with transportation.
CO2 emissions in transport Japan
CO2 emissions in transport Overseas
In Chile, road freight transport accounts for approximately 32.2%* of total national energy consumption and is responsible for about 28.7%* of greenhouse gas (GHG) emissions. This positions the sector as a key lever for achieving the country’s climate change mitigation commitments.
In this context, Komatsu Cummins Chile, aligned with corporate policies and global guidelines, has implemented a range of initiatives aimed not only at reducing its GHG emissions to meet 2030 targets for scope 1 and 2, but also at addressing its scope 3 emissions. Among these, particular emphasis has been placed on emissions associated with road freight transport.
To this end, the company operates a backbone logistics network consisting of 26 trucks dedicated exclusively to the transportation of Komatsu spare parts and machinery. This network connects, with high frequency, 18 logistics centers, airports, and customers between the cities of Iquique and Santiago, covering approximately 3,091,176 km per year.
As part of its roadmap toward cleaner transportation, Komatsu Cummins Chile has implemented initiatives focused on the gradual integration of electromobility and low-emission technologies. Currently, 13 out of the 26 trucks in the main fleet (50%) are electric vehicles, which are used for urban distribution over shorter distances. These vehicles were gradually incorporated during FY25, achieving a reduction of 81 tons of CO2e. It is estimated that during FY26, once fully operational, electric vehicles will enable a reduction of 273 tons of CO2e.
Additionally, 11 out of the 26 vehicles in the main fleet (42%) are equipped with Euro VI technology and are used for long-distance intercity transport across the country. This technology enables significant reductions of up to 50% in nitrogen oxides (NOx) and up to 90% in particulate matter, contributing substantially to improved air quality and public health.
The implementation of these initiatives is carried out through strategic partnerships and close collaboration with dedicated transport service providers. Within this framework, clean technology requirements are incorporated at early stages of procurement processes, based on previously defined technical assessments. Service deployment—encompassing the integration of new vehicles, the development of enabling infrastructure, and the adaptation of operational processes—is jointly managed with providers, ensuring a controlled transition and adherence to agreed service levels.
Looking ahead, Komatsu Cummins Chile plans to progressively scale the deployment of low-emission technologies across its logistics operations, extending this model to transport routes serving mining sites, located in different regions of the country. These initiatives not only contribute tangibly to emissions reduction but also reinforce the company’s commitment to sustainable development, creating long-term value for its stakeholders and strengthening a resilient and responsible operation over time.
