Medellin-based multinational electric-power grid operator ISA reported August 13 that its second quarter (2Q) 2018 net income dropped 16% year-on-year, to COP$232 billion (US$77.6 million). Earnings before interest, taxes, depreciation and amortization (EBITDA) for 2Q 2018 likewise dropped 3.8% year-on-year, to COP$945 billion (US$316 million), according to the company. As