- Develop sales plan according to the company's target, set out. products (amino acids) - Direct contact with customers and record all customer information - Directly perform and urge customers to perform the contract, including delivery and invoice procedures. - Receive and handle customer complaints about product quality, delivery time…. - Follow up the contract liquidation process, support the accounting department to urge the debt, only complete the responsibility when the customer has finished paying. - Search for potential customers. - Business development in the assigned area. - Customer care and sales according to the scheduled schedule. - Proposing sales policies to management level.