Our factory is located in Linyi city, Shandong province, covers an area of 30 acre(around 20000 square meters). Head sells office is located in Jinan city - provincial capital of Shandong province. Our history: Since 2007, HongChuang as a manufactory of ammonium polyphosphate (flame retardant) has been a quality chemical supplier to industries, such as electronics, building coatings, automobiles, plastics, woods, papers, fabrics, textiles and so on. Our products: Ideal for intumescent coatings and used in the fire retardant treatment of wood, paper, plastics (including polyurethane), textiles, and fabric.