Operator
Operator
Good morning. Welcome to the CEMEX Second Quarter 2015 Conference Call and Webcast. My name is Sylvia, and I'll be your operator for today. At this time, all participants are in a listen-only mode. Later we will conduct a question-and-answer session. [Operator Instructions] Our host for today are Fernando González, Chief Executive Officer; and Maher Al-Haffar, Executive Vice President of Investor Relations, Communications and Public Affairs. And now, I will turn the conference over to your host, Fernando González. Please proceed. Fernando González: Thank you, Sylvia. Good day to everyone and thank you for joining us for our second quarter 2015 conference call and webcast. We will be happy to take your questions after our initial remarks. We are pleased with our second quarter results. We had a 5% increase in sales with operating EBITDA generation growing by 13% on a like-to-like basis. This is the third quarter with consecutive double-digit growth in EBITDA. Our first half EBITDA was the highest since 2009, despite adverse currency fluctuations with an expansion in EBITDA margin of 1.7 percentage points. This growth was driven by prices for our three core products in most of our operations, better volumes in most of our products in Mexico, the U.S., Northern Europe and Asia, as well as our continue operating efficiencies. We are encouraged by the achievements during the first half of the year. Consolidated domestic gray cement volumes are the highest in seven years. We are on track to meet our $150 million in cost and expense reductions for 2015 with 50% having been realized in the first half of the year. We also have the highest free cash flow levels since 2010, reflecting our initiatives to reduce financial expenses and improve working capital, translating into a record low 23 working capital days. Our controlling…