The Brazilian Association of Vegetable Oil Industries (Abiove) has sued the Brazilian state of Maranhao over a proposed 1.8% export tax on soybeans and corn from the Port of Itaqui. The tax is expected to increase already tight margins for farmers and diminish the global competitiveness of Brazilian grain. This development comes after a similar tax was implemented in the state of Para, with the revenue being used for transportation infrastructure improvements. The 23 International Conference BLACK SEA GRAIN.KYIV, to be held on April 24 in Kyiv, will focus on the further development of the grain sector in the Black Sea and Danube region.