why CYM is a Billion $ company in the making, page-38

Heap leaching uses many different methods to obtain the necessary results. Some large companies like AngloAmerican use Bioleaching for instance which is a completely different method.

https://www.angloamerican.com/futuresmart/stories/our-industry/mining-explained/mining-terms-explained-a-to-z/bioleaching-definition-and-process
https://www.copper.org/publications/newsletters/innovations/2004/05/producing_copper_natures_way_bioleaching.html

Many use more conventional methods with different results and outcomes.

https://pubs.geoscienceworld.org/segweb/segdiscovery/article-abstract/doi/10.5382/Geo-and-Mining-08/588291/Management-of-Copper-Heap-Leach-Projects-A

As an example CYM has discovered ways to accelerate the leaching process which Metals X were not using. Just look at the results Barry had with Finders Resources and the accelerated leach times compared to the early production methods. A huge difference in the later BFS. And as 29101971 has pointed out the chalcopyrite is the Holy Grail of leaching. Barry has mentioned this many times.