MAEZAWA KASEI INDUSTRIES CO.,LTD. is engaged in the manufacture and sale of water- and sewerage-related products and environmental equipment-related products. The Company operated in two segments. The Resident Environment Improvement Products segment manufactures and sells the water-related, such as water rigid polyvinyl chlorides pipes and joints, water meter boxes and resin water valves; the sewerage-related, such as sewage rigid polyvinyl chlorides pipes and joints, special drainage joints and small-sized vinyl chloride manholes; the environmental equipment-related, including small-sized digestion tanks, effluent treatment-related facilities; the others, such as plastic valves for plants. The Environment- and Housing-related segment manufactures and sells the housing equipment-related, such as prefabricated bath parts, washing basins; the electrical equipment-related, including printer chassis and medical equipment; and others including outboard motor engine covers.