Russian grain prices continued on an upward trend in RUB expression on the domestic market. They kept dropping in USD expression, however, and demand increased as an export duty on certain grains is reportedly being considered. Russian Grain Markets Market Trends: 18-22 January 2016 During the week in review, grain prices at the Russian market continued on an upward trend in RUB expression. They kept dropping in USD expression, however, and demand increased. GEOGRAPHICALLY 3rd grade soft milling wheat prices increased in the South (+$6.50/MT), Black Soil and Ural (+$0.20-0.30/MT), Volga Valley (+$0.70/MT) and Siberia (-$1.30/MT), but they remained stable in Central.4th grade milling wheat prices grew in Central and Ural (+$0.20/MT), Vo...