ProInversión begins studies for Lima Metro Lines 3 and 4 with USD10.6 billion investment, Peru September 8, 2026 | Finance, Latin America Finance, Latin America News, News ProInversión has begun technical studies for the planned public–private partnership (PPP) projects for Lima Metro Lines 3 and 4, which together are estimated to require an investment of USD10.642 bill... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password