This individual has no known canonical name. While the information presented is canonical, the individual described lacks an official name, thus the title is conjecture.
Trader is a male Human who was buying Naquadah from Jacek. After checking the cargo which was actually lead pipes and styrofoam packing. Jacek managed to convince him that the styrofoam packing was "Jibbaran virility enhancers" and the trader believed him. (SG1: "Family Ties")