RE:RE:RE:RE:RE:RE:Convert M/I to Proven/Probable per SEC Regulationshttps://www.sagcmining.com/wp-content/uploads/2016/08/Investor-Presentation-March2016-Final.pdf
Your questions are valid.
In the pdf above it says that there was a smaller scale mine project study that was completed Q4 2015.
Back in 2016, they were already prepared to secure financing, and then head towards production in 2017 so I am assuming that all the studies were completed and were favourable.
Although nothing else on the website or filed on the TSX.
All this got derailed when the ban on open pit mining took effect.