Hitachi Construction Machinery (6305) Investor presentation summary

Net-zero emission trends in mining industry

• Major mining companies target net-zero CO2 emissions by 2050, with significant interim reduction goals by 2030–2035.

• Hauling and loading account for about half of mining CO2 emissions, with hauling alone responsible for 40%.

• Decarbonization of dump trucks is a key focus due to their high emissions and central role in operations.

Decarbonization strategies for dump trucks

• Development centers on hybrid and full battery dump trucks, leveraging AC drive system platforms.

• Full battery trucks are suited for regions with robust power infrastructure and low electricity costs; hybrids target areas with higher costs or less infrastructure.

• Hybrid trucks can be retrofitted to existing fleets and require no new infrastructure, reducing lifecycle costs by 10% or more.

Technological development and trials

• Full battery dump trucks use dynamic charging via trolley systems, minimizing battery size and maximizing utilization.

• A world-first feasibility trial at a Zambian copper mine confirmed zero CO2 emissions, improved performance, and successful dynamic charging.

• Battery charge simulation technology enables optimal operating plans and overhead line design.

• Commercialization of full battery trucks is targeted for FY2027, with hybrid trucks for FY2030.