On June 23, 2009 The USA and the European Union filed separate complaints with the World Trade Organization (WTO) alleging that China is unfairly benefiting domestic industries by restricting exports of coke, bauxite, fluorspar, magnesium, manganese, silicon metal, silicon carbide, yellow phosphorus and zinc. On June 24th the Chinese Ministry of Commerce responded by saying that export restrictions on these metals were in the interests of protecting the environment and limiting the depletion of natural resources, and in accordance with WTO rules. Bauxite, Manganese and Zinc are important materials for the passive component industry, with bauxite the most important- being consumed in both resistor substrates (as alumina) and in the anode and cathode foils of aluminum electrolytic capacitors. Manganese is used as the cathode material in the majority of tantalum capacitors produced; and zinc is the primarily metal used in varistors and in lightning arresters.
Additional Resources For This Story: Additional Resources: (1) Polyethylene Terephthalate (PET) Supply To The Capacitor Industry: 2007-2014 Global Market Outlook ISBN # 1-893211-82-7 (2007) (2) CAPACITOR FOIL: Global Market Outlook: 2008- 2013 ISBN # 0-929717-85-6 (2008) (3) Ceramic Dielectric Materials: World Markets, Technologies & Opportunities: 2008-2013 ISBN # 0-929717-76-7 (2008) (4) TANTALUM: Global Market Outlook: 2008-2013 ISBN # 0-929717-81-3 (2008) (5) Polypropylene Supply To The Capacitor Industry: 2007-2014 Global Market Outlook ISBN # 1-893211-83-5 (2007)