Canpotex, short for Canadian Potash Exporters (reporting mark PTEX), is a Canadian potash exporting and marketing firm, incorporated in 1970 and operating since 1972. Based in Saskatchewan, Canpotex manages the entire Saskatchewan potash exporting industry (excluding Canadian and US sales), including transportation and delivery.
Canpotex is the world's largest exporter of potash, selling over 10 million tonnes of potash every year, representing about one-third of global capacity.
The global potash market was considered a duopoly between Canpotex and Belarusian Potash Company (BPC), a similar consortium which exported Belarusian (Belaruskali) and Russian potash (Uralkali); until the BPC marketing venture failed in 2013, the two collectively controlled 70% of global potash exports.
Canpotex operates over 5,500 specialised covered hopper cars for inland transportation of potash from landlocked Saskatchewan to ports, and operates solely on Canadian Pacific Railway lines.
According to en.wikipedia