Medellin-based multinational electric-power, water, wastewater and trash-disposal giant EPM announced May 7 a 6% year-on-year hike in net income, hitting COP$1.7 trillion (US$435 million) Earnings before interest, taxes, depreciation and amortization (EBITDA) rose 17% year-on-year, to COP$3.4 trillion (US$871 million), while gross revenues rose 12% year-on-year, to