(May 21, 2020, 5:22 PM EDT) -- WASHINGTON, D.C. — A District of Columbia federal judge on May 13 denied a motion by Ukraine to file supplemental briefing raising a new defense under the New York Convention against recognition of a $112 million award in favor of a Russian company as Ukraine had not raised the argument in a timely manner and jurisdictional and merits determinations were already made during the arbitration (PAO Tatneft v. Ukraine, No. 17-582, D. D.C., 2020 U.S. Dist. LEXIS 84018)....