A.C.S. International works with the best manufacturers of quality aroma chemicals in China, India and Eastern Europe. Products are sold in original drums of the manufacturers under the manufacturers’ labels. All new product, which are introduces into the product portfolio of A.C.S. International are thoroughly tested. Sensory testing is performed by Karl-Heinz Bork, a senior perfumer (ex Symrise), who works as a consultant for A.C.S. International. Analytical testing (GC, GC/MS, density, refractive index, colour etc.) are performed at a highly professional contract laboratory, which is equipped with the latest technology in analytical chemistry.