LIMA, April 30 (Reuters) - Peru maintained its economic growth projection at 10% for this year, despite the Andean nation continuing to be buffeted by a second wave of the coronavirus pandemic and going into a second round of a presidential contest between candidates with stark ideological differences. Economy Minister Waldo Mendoza said 10% growth was possible thanks to state benefits for struggling citizens and sectors and would represent the fastest rate registered since 1994, following a plunge of 11.6% in 2020 as the pandemic and lockdowns - including on mining firms - crushed output. (Reporting by Aislinn Laing)