From the Crikey grapevine, the latest tips and rumours …

Where has Our Gina gone wrong? Mining magnate Gina Rinehart has had a rough time of it recently. Her near $200 million stake in the Ten Network is practically worthless, and according to media reports, Rinehart's $13 billion Roy Hill iron ore mine in Western Australia (she owns 70%) is still suffering teething problems. It is still to reach its rated production rate of 55 million tonnes a year, despite and promises in late 2016 that this figure would be hit early 2017. The mine started in February 2016. Roy Hill CEO Barry Fitzgerald said late last year: “But we will certainly achieve a 55 million tonnes annualised rate early in the New Year.” We're yet to see it.