Masahiro Harada

Kanematsu Telecom Investment operates as a holding company with interests in sales of telecommunications devices and plans. The company was founded on January 15, 2016 and is headquartered in Tokyo, Japan.

Diamondtelecom, Inc. engages in mobile and telecommunication services. It offers mobile solutions, equipment solutions, and back-office integrated management. Its products include surveillance cameras, digital synergy, air conditioners, hand dryers, solar power systems, D-mesh, D-billing, and D-support. The company was founded on March 10, 1994 and is headquartered in Tokyo, Japan.

Kanematsu Electronics Ltd. engages in the provision of information technology infrastructure services such as document, storage, network, and engineering solutions. It operates through the System Business and Service and Support Business segments. The System Business segment deals with information systems, network and systems integration, and software development. The Service and Support Business segment provides operation management, outsourcing, and system maintenance services. The company was founded on July 23, 1968 and is headquartered in Tokyo, Japan.

Kanematsu Communications Ltd. retails mobile phones, and telecommunication equipment, security software, and also provides mobile contents. The company was founded on April 3, 1974 and is headquartered in Tokyo, Japan.

Kanematsu Sustech Corp..engages in the provision of ground stabilization, wood and housing materials, foundation pile repair, and inspection services. It operates through the following segments: Geotech, Wood Processing, Security Equipment, and Petroleum Products. The Geotech segment includes ground improvement work, ground survey, and settlement modification work. The Wood Processing segment covers the dry processing, ant protection, and preservation of wood. The Security Equipment segment handles the sale of surveillance cameras and recorders. The Petroleum Products segment sells gasoline, diesel, and kerosene. The company was founded in February 1916 and is headquartered in Tokyo, Japan.