The cement industry in India is the second largest producer of cement globally. It has seen significant growth with a CAGR of 9.7% between 2006-2013. The key drivers of demand are the housing sector at 64% and infrastructure such as roads and bridges at 17%. The largest cement companies are ACC, Ambuja, and Ultratech. Issues facing the industry include high transportation costs and dependence on coal and power which have rising costs and are regulated by the government. The industry has impacts on the environment through carbon dioxide emissions in production and nitrogen oxide emissions from fuel combustion.