¡ Revenue as the measure of total value provided to our customers ¡ Adjusted earnings before interest, taxes, depreciation and amortization (EBITDA), as a measure of current earnings capability ¡ Return on invested capital (ROIC) as a measure of ensuring the most profitable long-term decisions ¡ Free cash flow, as a measure of ability to reinvest in the company or return capital to shareholders The principal drivers of our revenue and EBITDA growth in polymers business, the continued regulatory adoption of emissions control products in Performance Materials, and continued growth in our pavement technologies business.