Rio Tinto iron ore output up again, but exports fall

[caption id="attachment_822927" align="aligncenter" width="600"] Iron ore operations in the Pilbara. (Courtesy of Rio Tinto)[/caption] Rio Tinto (LON, ASX:RIO), the world’s second-largest iron ore miner, revealed Tuesday that production of the steel-making material increased 12% in the first quarter from a...