As of September 2013 Calgon Carbon was "one of the top three suppliers of activated carbon for the mercury removal market and supplies 32 electric generating units that produce 14.2 gigawatts of electricity." That summer the EPA's pending Mercury and Air Toxins Standards required all power plants to filter the mercury emitted by burning coal. At the time, the EPA recommended activated carbon as the best available "control technology for mercury removal." Calgon Carbon predicated that when the policies are implemented in April 2015, the demand for activated carbon might double. Calgon Carbon products are distributed by Brenntag Canada in Canada, and in September 2013 they signed a near $30 million contract for Calgon Carbon's FLUEPAC product, which is a powdered activated carbon that can filter mercury.