Also, access to international sulfur markets. That wouldn't be a barrier for Canada though, which has access to an unlimited supply from (ironically) its oil i

Also, access to international sulfur markets. That wouldn't be a barrier for Canada though, which has access to an unlimited supply from (ironically) its oil industry. Athabasca oil sands are somewhere around 5% sulfur, most of which gets extracted and piled up into useless pyramids (since no one is buying it). https://www.businessinsider.com/there-are-mountains-of-sulfur-growing-in-the-oil-sands-just-waiting-for-demand-to-increase-2012-4 https://www.businessinsider.com/there-are-mountains-of-sulfu... https://boingboing.net/2016/07/05/the-great-sulphur-pyramids-of.html https://boingboing.net/2016/07/05/the-great-sulphur-pyramids...