Miner shares have trailed falling iron ore prices, which have sunk by 17% this year.

Run-of-mine coal production for the three months ended March 31 was 4.4 million tonnes, compared with 4.3 Mt a year earlier.

Private company Hancock Prospecting will pay Titan Minerals as much as $120 million on drilling and exploration work.

The world's largest listed miner said iron ore production from mines it operates in Western Australia on a 100% basis was 68.1 million tonnes during the three months ended March 31.

The Australian government will provide a combined A$585 million to Alpha HPA and Renascor Resources.

Mine depletion in its Yandicoogina mine in Western Australia contributed to the fall in shipments.

Rinehart amassed a 5.82% stake in Lynas via her private company Hancock Prospecting Ltd.

The amount of metals required for each kilowatt of generation capacity has risen by 50% since 2010, according to the IEA.