Qat, a psychotropic drug harvested from the Catha edulis plant, is commonly consumed in Yemen, as well as in eastern Africa and other areas of the southern Arabian Peninsula. Despite critiques that qat production and consumption strain agricultural and household resources, respectively, the qat industry makes a significant contribution to national income in Yemen. Not surprisingly, the industry is a significant source of employment in the country, employing roughly 500,000 Yemeni workers, or 7.9 percent of the Yemeni labor force. This research examines the significance of these workers in the Yemeni cultural economy and in light of the socioeconomic development goals of the Yemeni state. Specifically, this research examines the agency of these workers in the process neo-Marxist philosopher Henri Lefebvre terms 'the production of space.’ This production of space entails individuals shaping the material landscapes of their lived spaces, a recursive process which both reinforces and alters the social processes which create the spaces in question. In the context of this research, spatial agency involves members of the qat industry shaping the social (both mental and material) spaces in which they work. This paper analyzes semi-structured interviews conducted in and around Sana’a, Yemen with workers in various stages of the qat supply chain, ranging from farm to marketplace. Previous research on the qat industry has found it to be influential in creating material changes on the Yemeni agricultural landscape: altering agricultural practices and constructing infrastructure to serve qat producing areas. Previous research has also found the spaces of qat consumption to be significant venues for the production and reproduction of Yemeni social relations. This paper identifies an active participation by members of the qat industry, discursively and materially producing commercial spaces of qat production and trade, and in maintaining social relations therein. Since qat is a substantial element of the Yemeni economy and labor issues are a significant component of development policy, these economic spaces, as well as the social relations that both influence and are influenced these spaces, have important implications for the development goals of the Yemeni state.