MANILA, PHILIPPINES--November 20, 2013--Researched by Industrial Info Resources (Sugar Land, Texas)--The fourth-most powerful typhoon on record has wreaked a copper-processing plant owned by Philippine Associated Smelting and Refining Corporation (PASAR) (Leyte, Philippines), the smelting subsidiary of Glencore Xstrata PLC (LSE:GLEN) (Baar, Switzerland).