Unit 1 Business Arrangement Documents Module 1 Corporation Publicity Module 2 Marketing Plans Module 3 New Product Launch Module 4 After-sales Service Unit 2 Business Affairs Module 1 Memos Module 2 Minutes Module 3 Business Meetings Module 4 Business Reports Unit 3 Business Corresponding Documents Module 1 Inquiries and Replies Module 2 Payment Module 3 Orders and Contracts Module 4 Complaints and Adjustment Unit 4 Business Operation Module 1 Market Research Module 2 Product and Sales Analysis Module 3 Quality Analysis and Control Module 4 Feasibility Studies