Potash is one of the three vital ingredients into modern fertilisers that allows the 7 billion of us to be fed. Rather like, in fact, the conventional oil market. That cartel wasn't as large as Opec is in the conventional oil market but it had much the same effect. And the effect on the potash prices has been as it would be on the oil price, over time, if Opec were to not exist or cease existing. Someone who is pro-business would be pro- the cartel which maintained profits for all participants in the market.

Source: Forbes January 26, 2017 17:47 UTC