Romania remains Ukraine’s largest alternative export route for grain and other goods, in addition to Kyiv’s Black Sea corridor, according to the Assistant Secretary of the U.S. Department of State for European and Eurasian Affairs, James O’Brien. According to him, in December, Ukraine exported about 7.5 million tons of grain, mostly through its own corridor and also via Constanta. “I see going forward some kind of a balance like that. I think, just holding the levels of export we have now, about seven million tons of grain, and another million or so tons of other items a month, would mean more…