Passing my mining standards test

I went straight to the mine to learn how they mine and to be sure it was to my standards. Before purchasing, I analyzed the situation. Does it pass my mining standards test- ethically for the workers and ecologically for the land?

Overall they more than passed. There is always room for improvement and I'm already formulating ideas to further their safety and make the process easier, but none of my main concerns were here- no children were mining, there was ZERO environmental destruction and most importantly- these miners worked for themselves by choice. Not only that, but women were not only present, but in charge of business. This plus zero negative environmental impact made them pass with flying colors.