RE:Scientist Running Uralkali Seeks to Prevent Drop in Potash Psorry to burst your bubble cal train.. yes Brazil prices are up to $350 but Vancouver is 275-315 depending on contract or spot price in mid May. If $340 is the number it's going to be a while yet.
https://media.argusmedia.com/~/media/Files/PDFs/Samples/Argus-FMB-Potash.pdf