St. Petersburg, Russia, 2016-Jul-13 — /EPR Retail News/ — Lenta, (LSE, MOEX: LNTA), one of the largest retail chains in Russia, today announced that the Fitch Ratings has upgraded its Long-term foreign and local currency Issuer Default Ratings (IDRs) from ‘BB-’ to ‘BB’ and its National Long-term rating from ‘AA-(rus)’ to ‘A+(rus)’. The outlook on the…