Company attracts investment from Maine PERS for second time. : Cube Infrastructure Managers is close to reaching a second close on its latest fund, having raised capital from investors that include Maine Public Employees Retirement System (PERS). The European infrastructure fund manager could hold a second close in September, according to sources that track capital raising, as it seeks to secure €1.2bn for Cube Infrastructure Fund II. Maine PERS, which committed $44.8m (€39.2m) to the first fund in 2010, will be making a commitment of between $50m and $75m to the new fund.