Its a pretty common approach, Stage 1 will be built and...

Its a pretty common approach,

Stage 1 will be built and commissioned which would include common upgraded components such as the Feed system / conveyors leading to the plant to support the second stage. Running Stage 1 for a period allows them to iron out the bugs and get Stage 1 performing to name plate. More importantly it will allow Leo to generate income to support the required capex for building Stage 2. Always a the best approach.