Hindustan Copper’s Ahmed Says Japan Rebuilding to Boost Demand

Mar.22&nbsp;(Reuters) - Treatment and refining charges (TC/RCs) that Asian smelters receive for converting spot copper concentrates into metal have risen by a third since the Japan quake due to extra supplies, trading sources said on Tuesday.
Spot TC/RCs traded at $120 a tonne and 12 cents a pound this week, up from $110 and 11 cents last Friday and $90 and 9 cents before the Japan quake.
Canada's Imperial Metals Corp said on Monday Mitsubishi , Furukawa and Dowa had declared force majeure on copper concentrate for the Onahama smelter. The Canadian miner is a supplier of concentrate. 
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