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AdBlue is made from high purity urea solution. Urea is produced synthetically from ammonia and CO2 (carbon dioxide). Urea is found in every day products such as hair conditioner, cosmetics, adhesives.

Air1 is commercialized by Yara, the largest AdBlue producer in the world. Yara's AdBlue plants in Europe are located in the Netherlands (Sluiskil), Germany (Brunsbüttel) and Italy (Ferrara). These plants are strategically placed to feed the European market and beyond with AdBlue. Yara's Sluiskil plant is the world’s largest AdBlue production site and has an annual capacity of 400 000 tonnes of AdBlue.

By 2012, AdBlue consumption in Europe is estimated by ACEA to reach 3,5 million tonnes per year. When market maturity is reached, North America will be the largest AdBlue (DEF) market in the world, followed by Europe and Brazil. In a market that is growing rapidly, Yara offers more than enough capacity to meet the global demand.