Line 109 begins transition to first fully CNG-powered bus fleet, Argentina June 29, 2026 | Latin America News, News Line 109 begins transition to first fully CNG-powered bus fleet, Argentina June 29, 2026 Grupo Metropol, in partnership with MetroENERGÍA, has deployed the first 10 compressed natural gas (CNG) buses ... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password