Mining Contractors and Engineers. 1 2 4 3 6 5 8. 10 7. 12 11. 11 13. 1. Sumitomo, Pogo Alaska 2. Barnard, Blue Lake Alaska 3. PCS, Scissors Creek (AMC) Saskatchewan PCS, Corey (AMC) Saskatchewan Mosaic, Esterhazy (AMC) Saskatchewan Agrium, Vanscoy (AMC) Saskatchewan 4. , Lalor Manitoba , 777 Manitoba 5.