an ore is a rock containing enough valuable mineral to make it worth extracting. ... copper minerals are found in over one hundred varieties, although only a few have been worked for copper on a large scale. the most abundant ores...
description of commodity: copper ore 6% to 25% origin: (specify country, state, province) mexico quantiy: (example: metric tons (mt) 2, 000mt + monthly desired contract length: (how many months) one year o more delivery: (example: how many vessels...
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