Yoshiharu Miura

Sika (Japan) Ltd. engages in the research, development, manufacture and sale of civil engineering, construction and industrial chemical products. It provides admixture for concrete, mortar related products, sprayed concrete for tunnels, epoxy adhesives, protective paint coatings, elastic joint sealants, damping materials, industrial adhesives, sealing materials, sound insulation materials, reinforcing materials, marine adhesives, flooring materials, waterproof sheets, moisture proof tapes and others. The company was founded on August 5, 1955 and is headquartered in Tokyo, Japan.

Dyflex Co., Ltd. manufactures and sells architectural and civil engineering waterproofing materials. It produces waterborne polymers for paints and coatings. The firm supplies its products to the industrial coatings for wood, plastic and metal, building products, and graphic arts. The company was founded on April 10, 1964 and is headquartered in Tokyo, Japan.