Salaries ,overtime and bonus
Social security and workmen compensation
Employee welfare
Depreciation- Building
Depreciation- Furniture
Depreciation- Office equipment
Demonstration goods
Training and seminar expenses
Other welfare
Telephone expenses
Accounting fee
Audit fee
Service fee
Insurance premium
Magazine and subscription
Examination service expenses
Postal expenses
Property tax
Sign tax
Electricity - water expenses
Internet expenses
Security guard expenses
Office supplies
Miscellaneous expenses