Urea Solution is an environment-friendly catalyst product that reduces nitrogen oxides (NOx), a cause for air pollution, and is used in vehicles equipped with diesel engines in a process called Selective Catalytic Reduction (SCR).

It is a “catalyst” used in reduction devices in order to reduce vehicle gas emission based on the Air Environmental Conservation Act and according to the International Standard ISO 22241dp, it is required to maintain aqueous solution of 11 degrees below zero temperature and of approximately 32.5% nontoxic, colorless and odorless element content.