How does the process of export diversification take place in an economy in transition, especially in light of government policy aimed at trade liberalization? This article examines this question by considering a directed policy effort by Syria – an economy in transition from both economic centralization and resource dependence – to liberalize its trade between 2001 and 2008. In addition to documenting the patterns of diversification at the aggregate level since the implementation of the policy, we also examine factors that are related to diversification at the sectoral level. Our findings suggest that, while Syria has achieved reasonably rapid export diversification, this may to a large extent be the result of structural transformations in the economy, and that further diversification may require continued policy reform designed to strengthen Syria's weak institutional and business environment.