Over the past two decades, global patterns in tobacco production and trade have shifted dramatically. While research by tobacco control groups and public health organizations has focused on tobacco production and elucidated several key trends driving these shifts, considerably less is known about patterns of tobacco trade. Understanding the global tobacco economy—and the major players in it—depends on developing a more complete knowledge of all stages of the tobacco supply chain, including production of tobacco, trade of unmanufactured tobacco leaf, processing of tobacco leaf into various tobacco products, and trade and consumption of manufactured tobacco products. As with many other commodities, tobacco has its own unique and evolving supply chain. This report focuses on understanding patterns in production and trade of unmanufactured tobacco leaf.