The main goal of this research is to study the impact of uncertainty on export performance, from a resource-based perspective. Despite the ample research on how economies behave during periods of high uncertainty, there is still a poor understanding of how this affects smaller sectors, particularly the most exposed to global competition. In this paper, we perform an evaluation of export performance for the Portuguese pharmaceuticals sector (PPI), before and after a period of considerable uncertainty. This study’s results show strong incremental performance gains, during this period. It also confirmed the importance of marketing capabilities, innovation and networking resources in developing international businesses.