Asahi Concrete Works Co., Ltd. manufactures and sells concrete products in Japan. Its offerings include box culverts such as PC box, HTC Box, PRC box, large multi-section box, PPCa box, and box culverts for jacking construction, as well as rainwater storage tanks including PC rainwater storage tank agua, new box-type agua, box culvert type rainwater storage tank, and PCa open regulating pond. The company also provides connect holes in circular, oval, square, infiltration, and floating suppression types, along with disaster toilets, waterways, fire prevention water tanks, underground garages, and railway and road related products. Incorporated in 1923, it is headquartered in Chuo, Japan.