SOP Magnesia March 27, 2020Great Lakes, Market Watch, Specialty, Sulfate of Potash Magnesiamickeybarb@charter.net Great Lakes: SOP Magnesia was quoted at $340-$345/st FOB inThis content is restricted to site members. If you are an existing user, please log in. If you would like to Subscribe please go to the 'Subscribe' area from the main menu.