Phase 1 resulted in a maiden JORC resource of 43 million tonnes.
The analysis found a primary coking coal with secondary PCI for a combined yield of 89%.
The team has implemented various procedures and initiatives.
The company said it was confident it could reach its deadline, pending no further rain events.
Raw coal quality results were very encouraging and are in line with the company's expectations.
Sumitomo will spend up to $7.5 million to earn up to 20% of the project.
Drill site clearing and site inductions for the drill crew are underway.