Foreign firm comprador must market goods as the deputy for the firms, negotiate prices, subscribe contracts, deal with payments and ensure the credit of native traders.

• 洋行买办的职责主要是代表洋行执行购销任务，同时磋商价格，订立交易合同，收付货款以及担保华商的信用等。这一时期，洋行买办包销包购的方式颇为流行。