Rio said it expected iron ore shipments for the year to be at the upper end of its range of 330 million to 340 million tonnes, thanks to productivity improvements and fewer weather-related disruptions compared to Q2 2017.
Iron ore output hit 96.755-million tonnes in the three months to June 30, while pellet output reached 12.838-million tonnes, despite a nationwide truck drivers strike that paralyzed the country in May.
The autonomous train, consisting of three locomotives and carrying around 28,000 tonnes of iron ore, travelled from Tom Price mine to the port of Cape Lambert
Uncertainty around the charter has deterred investment into a sector that accounts for 8 percent of gross domestic product in the world's top platinum producer.
Iron ore’s starting to buckle after a series of warnings that prices are set to drop amid rising global supply, and as investors fret about the potential impact of escalating trade tensions between the U.S. and China.
Prices of steelmaking raw materials dropped to multi-week lows on Thursday as a festering trade row between China and the United States kept risk appetite low.