KARRATHA, Australia--(BUSINESS WIRE)--Rio Tinto's first Pilbara-made iron ore rail car has rolled off the production line in Karratha, as part of a A$150 million partnership with Australian rail industry supplier Gemco Rail to build 100 rail cars in Western Australia and to support local manufacturing. The first Karratha-made rail car follows the completion of 40 Western Australian-made iron ore rail cars under the partnership at Gemco Rail's Perth facility earlier this year, with the remaining. ...