Small scale cross-border trade on the Thai–Lao border has come under increasing pressure with the construction of a new Mekong bridge that has expanded formal trade between the two countries. Most small-scale traders are women who, with assistance from family and friends, have developed small businesses from childhood, and created social networks across the border with other traders, and relevant actors such as drivers and government officials. Such networks, trust, experience and familiarity enabled superior access to information and trading concessions that have enabled the continued success of small-scale trade, the maintenance of complex cross-border livelihoods, and the ability of traders across an increasingly regulated border to deal with constraints and risks. A few established traders have developed trade networks and social relationships involving supply chains across several countries.