https://www.atlanticcouncil.org/dispatches/how-to-secure-the...
> US mines produce roughly 500,000 metric tons of potash per year, only about 8 percent of the 5.9 million metric tons of apparent annual US consumption. The remaining demand is met through imports, producing a net import reliance of about 92 percent. Reflecting the high concentration of global potash production, most of that supply comes from Canada (79 percent), with smaller volumes from Russia (12 percent) and other producers (9 percent) including Israel.