Specialist purchasing or selling goods, or dealing in insurance, freight rates, securities and securities or other business on behalf of a principal, for an agreed commission; Sales or transactions are not negotiated in its own name but in the name of the principal. There are several categories of brokers, the main ones being: a marine broker, a broker interpreter and a ship operator (sworn). Charter broker (acting on behalf of the merchant: the exporter, he is looking for the vessel), charter broker (acting on behalf of the ship owner, looking for cargo), purchasing broker and sales of ships, Sworn broker, insurance broker.