In mid-March, Beijing banned exports of nitrogen-potassium fertiliser blends and certain phosphate varieties, sources told Reuters.
The ban, which has not been formally unveiled, was reported earlier this week by Bloomberg News.
Added to existing bans and export quotas for urea, only a handful of fertilisers – notably ammonium sulphate – can be exported, five sources said. That would mean between half and three quarters of China‘s exports last year are restricted, potentially up to 40 million metric tons, according to a Reuters estimate.