So Takane

Haneda Zenith Holdings Co., Ltd. engages in the manufacture and sale of concrete products. It operates through the following segments: Concrete Products, Ceramics, Construction, and Others. The Concrete Products segment provides manholes, hume pipes, box culverts, and disaster-prevention products such as rock fall protection fences. The Ceramics segment offers electronic components and new ceramic products such as semiconductor devices and sliding parts. The Construction segment manages the installation works of concrete and disaster-prevention products. The Others segment includes equipment rental, material sales, radio frequency identification, and real estate leasing services. It is also involved in the public works and manufactures new ceramic products. The company was founded on April 1, 2011 and is headquartered in Tokyo, Japan.

Haneda Zenith Co., Ltd. manufactures and sells concrete products. It also deals with disaster prevention, construction, and maintenance services. The company was founded on April 1, 2014 and is headquartered in Tokyo, Japan.

Hanex Co., Ltd. is engaged in the manufacture and sales of sewerage related concrete products, new ceramics, equipment and RFID products. It is also involved in contractual work for sewerage piping and earthquake proofing. The company was founded on April 4, 1941 and is headquartered in Tokyo, Japan