![BHP potash](https://static1.squarespace.com/static/55fcd96ee4b0d78d7a83ab7c/55fcdce5e4b0ae99d3b9f5a5/55fcdce5e4b0ae99d3b9f67e/1375241211417/1000w/5473179-23214663-thumbnail.jpg)
Russian Miner Ualkali has dashed BHP's hopes of a replacement for declining iron ore prices. Uralkali is the world's largest potash producer and on Tuesday announced it's ending the decades-old distribution arrangement with Belarus, which controls roughly 43% of global exports, to go it alone.