Great Lakes:
The SOP Magnesia market was quoted at $450-$472/st FOB in Michigan, with reports of OMRI Trio priced as high as $580/st FOB on a spot basis in the Great Lakes state.
Eastern Canada:
SOP Magnesia prices had reportedly firmed to C$715-$720/mt FOB in Eastern Canada in mid-August, up some C$65/mt at the low end of the range.