In the domestic building materials business, ITOCHU produce and sell a wide range of products for the Japanese residential and non-residential markets.
DAIKEN Corporation engages in a wide range of business from manufacturing and selling environmentally friendly materials and interior building materials to interior work for buildings, and renovation/remodeling work for houses and condominiums. It aims to grow its business by providing comfortable, sustainable spaces.

ITOCHU KENZAI CORPORATION is Japan's first specialized building materials trading company. As such, it supplies not only products related to housing, such as building products & materials, wood-based panels, and timber products, but also construction and civil engineering materials, and services including logistics, design, and construction services.
It has launched the CHIKYUGI brand, and is working to balance business and environmental considerations toward the creation of a recycling-oriented society.