ESSEN, Germany - The Inorganic Materials business unit of Evonik Industries is raising the sales prices for its silica products, metal oxides and matting agents as of June 1, 2014. The fumed silica and metal oxides are sold under the brand names AEROSIL^® and AEROXIDE^®. The precipitated silica are under the brand names ULTRASIL^®, SIPERNAT^®, SIDENT^® and ACEMATT^®. The prices will be increased by up to 8% or as contracts allow.