伸和建工株式会社 is a Fukuoka fireproofing contractor and a registered 販売工事会社 for Taiheiyo Materials’ Spray Coat sprayed rockwool system, working under that maker’s 国土交通大臣認定 耐火構造 approvals. It is also a registered applicator for NICHIAS’s Makibee wrap-type 認定工法 and for Kikusui Chemical’s intumescent fire-resistive coatings, covering Kyushu from offices in Nakagawa, Fukuoka, Nakama and Kagoshima.