TogliattiAzot (Russian: ТольяттиАзот) is a Russian chemical company, that has been described as the world's largest ammonia producer. It is headquartered in Tolyatti, Russia. The main ammonia plant in Tolyatti was constructed as a joint project of the Soviet government and Armand Hammer and started operation in 1979. The Tolyatti-Odessa ammonia pipeline, the longest ammonia pipeline in the world, is operated by . A marine ammonia terminal is under construction at Port Taman near Taman, Russia. TogliattiAzot is one of the largest taxpayers in the Samara region.