Corporate Profile

In every phase of the construction value chain, the Kumagai Gumi Group demonstrates the comprehensive capabilities of its eight group companies. We are working to diversify our earnings by strengthening our construction business, which is the core of our business management, and adding construction-related peripheral businesses as further growth areas.

In the area of major infrastructure renewal, demand is expected to increase for bridge deck slab replacement construction along aging expressways. We are focusing on the promotion of construction methods including the Cotter Floor Slab Method for Bridges, which uses joint members to join precast slabs, and the “Kirikata Jozu” method, which separates the slab from the main girder while the road remains in service. In the field of disaster prevention and mitigation, and national land strengthening, we are conducting research and development to improve unmanned construction technologies.

• Major infrastructure renewal
• Renewable energy
• Disaster prevention and mitigation, and national land strengthening
• Unrecyclable waste disposal facilities

In the area of medium- and large-scale wooden construction, we are promoting initiatives through “with TREE,” a medium- and large-scale wooden construction brand launched with Sumitomo Forestry Co., Ltd. in March 2021. In addition, we are also focusing on the development of technologies that meet customer needs, and are strengthening our efforts in environmentally friendly construction by acquiring fire-resistance certification for all major structural components (columns, beams, floors, and walls) with our original Insulated Fire-Resistant λ-WOOD®.

• Production, commerce, and logistics
• Medical and welfare services
• Medium- and large-scale wooden construction
• Urban redevelopment
• Environmentally-friendly renewal field

The Kumagai Gumi Group is expanding sales and marketing networks at our overseas offices, and is striving to expand our business to secure stable sources of revenue. To expand the Group's market share in Taiwan, Taiwan Kumagai Co., Ltd., our local subsidiary in Taiwan, has received numerous large-scale orders due to its increased brand power based on having constructed large landmark buildings in Taiwan, including Taipei 101 and Tao Zhu Yin Yuan, dramatically increasing our business performance.

• Urban infrastructure development in Asia
• Support for Japanese companies entering the Asian market
• Expand the Group's market share in Taiwan

In the woody biomass power generation business, including a business alliance with Sumitomo Forestry Co., Ltd., we are planning a woody biomass power generation project in the village of Iidate in Fukushima Prefecture, and are preparing to start power generation operations there in 2024. In the wind and solar power generation business, our first solar power generation project in Hamamatsu City, Shizuoka Prefecture, and the Cat Hiep mega solar project in Vietnam are operating smoothly, contributing to earnings.

• Woody biomass power generation business, including a business alliance with Sumitomo Forestry Co., Ltd.
• Wind and solar power generation business (including overseas projects)

In the urban renewal/urban development projects field, we are actively participating as a land owner in the redevelopment project under way in the area surrounding the Iidabashi Station East Exit in accordance with the urban planning and development policies established by the Tokyo Metropolitan Government and Shinjuku City.
In real estate development projects, including a business alliance with Sumitomo Forestry Co., Ltd., we are aiming to increase medium- to long-term profits through that business alliance. Furthermore, we are also involved in activities including purchasing prime income-producing properties in Japan that are expected to become redevelopment zones in the future, and working with local developers in Taiwan to propose rebuilding of aging housing.

• Urban renewal/urban development projects
• Real estate development projects, including business alliance with Sumitomo Forestry Co., Ltd. as well as overseas projects

In the PPP (public-private partnerships) and concessions field, we will continue to aim at participating in PFI projects (food service centers, government buildings, gymnasiums, etc.) in which we excel. In Hong Kong, together with the management, operation, and maintenance of the Eastern Harbour Crossing and Tate's Cairn Tunnel, tasks which have already been outsourced, we will continue activities designed for obtaining orders and secure profits by taking management efficiency into consideration.

In the biomass fuel development and sales field, we have developed black bark pellets, a high-quality biomass fuel. The company aims to contribute to carbon neutrality by using wood tree bark, which is normally handled as waste, as a raw material.