Sole agent(exclusive agent): similar to general agent, a sole agent may be a firm or a person who acts exclusively for one foreign principal with exclusive C or sole) agency rights to sell on a commission basis certain commodities in a certain area under some kind of agreement or contract.Sole agent (exclusive agent): similar to general agent, a sole agent may be a firm or a person who acts exclusively for one foreign principal with exclusive ( or sole) agency rights to sell on a commission basis certain commodities in a certain area under some kind of agreement or contract