Hitachi Construction Machinery Co Ltd (HCM), a subsidiary of Hitachi Ltd, manufactures and distributes construction and mining equipment. Its portfolio of products includes mini excavators, wheel loaders, mini wheel loaders, rigid dump trucks, road construction machinery, double arm working machines, hydraulic excavators, large and ultra-large hydraulic excavators.

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HCM is actively engaged in research and development activities to create added value and enhance quality and reliability. The company is conducting research on over 250 technological themes, which are categorized into solutions provision, remote control and automation, environmental impact reduction, and life cycle cost reduction. The company collaborates with external parties and allocates financial and human resources to these themes. Key developments include technologies for emission regulations, clean energy-friendly products, and electric construction machines. The company also focuses on developing competitive parts for mining equipment and optimizing designs for fixed plants and mine processing. The R&D activities of HCM are primarily led by the Advanced Development Center of the Research & Development Group. Other units involved include the Research & Development, Production & Procurement, and Corporate Quality Assurance Groups, along with research and development staff from group companies. These units work in close cooperation to promote the development of new technologies and products. Additionally, the company engages in consignment research and collaborative research with Hitachi, Ltd. and universities in Japan and abroad to acquire advanced technologies and develop human resources with expertise in these areas. In FY2025, the company spent JPY37,510 million on R&D, which as a percentage of revenue stood at 2.7%, and grew 19% YoY.