non-halogen flame retardant---ammonium polyphosphates (APP), and because of it is non-halogen, it is harmless for health and environment. The Polymerization degree is above 1000, so it is especially used in wood, plastic, rubber products and flame retardant coatings. Our products are in compliance with Germany standard Exolit AP422. Now the APP have been sold to the Russia, Korea, Italy and south Asia.