Canada-based Aecon Group Inc. Revenue was $590 million for the second quarter of 2014 compared to $698 million for the same period of 2013, largely due to lower revenue in Mining (as a result of lower volume of site installation work following the substantial completion of a significant project in 2013, and lower demand for contract mining services largely driven by temporary client production shutdowns in the oil sands during the second quarter). Adjusted EBITDA for the second quarter of 2014 was $13.8 million compared to $36.7 million for the second quarter of 2013 driven by the slower quarter in the Mining segment. For the first half of 2014, Adjusted EBITDA was $16.9 million compared to $25.4 million in the prior year.