Excellent result.
The Gekko plant is cheaper to set up, very low on cyanide use, lower on power use, AND is now shown to be more effective:)
That is good.
An extra 18 million worth of gold - that is the cost of an initial plant set up! Free by the end of the project:)
As you say...its yet to be mined...but very positive result on the test work that's for sure.
Cheers