The suppliers of logistics include professional customs declaration companies and commodity inspection companies, as well as customs declaration, commodity inspection and transportation, or customs declaration, transportation, commodity inspection and transportation. The next paragraph is the transportation company (air transport, sea transport, railway transport, or their mixture), storage company, express delivery company, so:
The main business costs of customs declaration companies: customs declaration fees, inspection fees, commodity inspection fees, etc.
The operating expenses of the customs declaration company include: personnel expenses, water, electricity and coal, equipment depreciation expenses, repair expenses, etc.
Main business cost of transportation-related companies: Of course, it is related to transportation, and it is included in the main business cost, especially gasoline and diesel, which is the main cost of transportation enterprises (ordinary companies include gasoline and diesel in their operating expenses).
For storage companies, if the house is rented, then the rent should be included in the main business cost, not the general management expenses.
No matter what kind of company, the operating expenses are basically the same.
The above is just a principled division. I don't know if you understand. If you can explain the specific expenses incurred by your company, I can help you classify them.