Russia said on Wednesday it would only agree to extend the Black Sea grain deal, which allows grain to be safely exported from Ukrainian ports, if the interests of its own agricultural producers are taken into account.
The Black Sea Grain Initiative, brokered by the United Nations and Turkey last year, expires on March 18 and cannot be extended unless all parties agree. Russia has already signalled it is unhappy with aspects of the deal.
Russia's agricultural exports have not been explicitly targeted by Western sanctions, but Moscow says restrictions on its payments, logistics and insurance industries are a "barrier" to it being able to export its own grains and fertilisers.