** Shares of miner Perpetua Resources PPTA.O rise 5.2% to $26.63
** Company says U.S. Export-Import Bank's board has agreed to notify U.S. Congress of a proposed $2.7 billion loan for development of its gold Stibnite project in Idaho
** PPTA adds that this decision triggers a 25-day notice period to Congress and is the last formal step before U.S. EXIM's board will vote on final approval
** PPTA anticipates a final vote on the loan by the U.S. EXIM board shortly after the notice period ends
** If the proposed loan is approved, PPTA would have sufficient capital to finance the estimated capital cost of $2.576 billion to build the project
** Including session's moves, stock up 10.6% YTD
(Reporting by Pooja Menon in Bengaluru)
((Pooja.Menon@thomsonreuters.com;))