This paper uses disaggregated trade data for 2010 and applies ex-ante partial equilibrium modeling to calculate the impact of the preferential trade agreement between Canada and Colombia. The simulations carried out show aggregate trade creation could be one and a half times larger than trade diversion; trade between the two countries in the first year of the agreement could grow by approximately ten percent and will be focussed on a small number of goods; trade diversion is stronger with the largest trading partner of each signatory, namely the United States; and trade diversion is not strong in the case of Colombia’s neighbors with which there was significant trade prior to the agreement