	vieille montagne says conditions unfavourable a sharp fall in the dollar price of zinc and the depreciation of the u s currency created unfavourable economic conditions for vieille montagne sa vmnb br in it said in a statement that the two factors led to a squeeze on refining margins and an pct fall in sales and services income despite an unchanged level of activity vieille montagne which is actively pursuing a restructuring program reported a mln franc net loss after mln francs in provisions for the closure of an electrolysis plant compared with a mln franc net profit in reuter 
