TEIKOKU SEN-I Co., Ltd. is principally engaged in the manufacture and sale of firefighting products. The Company operates in three segments. The Disaster Prevention segment is engaged in the manufacture, purchase and sale of fire hoses and related products, disaster prevention equipment, emergency rescue equipment, searching and alarm equipment, hazard disposal related equipment, rescue vehicles, special purpose vehicles for disaster prevention, as well as chemical fire engines for airport use. The Textile segment is engaged in the manufacture and sale of high-performance fiber materials such as textile materials for government and nomex for industrial materials for private. The Real Estate Leasing segment is engaged in leasing business such as shopping center leasing. Other segment is engaged in insurance agency business.