The cost for Moly Mines Ltd's Spinifex project in the Pilbara has risen from $1.1 billion to $1.26 billion following the inclusion of costs for a power station after a deal with an infrastructure company fell through.

The cost for Moly Mines Ltd's Spinifex project in the Pilbara has risen from $1.1 billion to $1.26 billion following the inclusion of costs for a power station after a deal with an infrastructure company fell through.