If you do it alone, you will save other labor costs, but increase your own costs, which will cost you a lot of time and energy. Of course, personal energy is limited.

Costs that may be incurred in setting up factories, registering trademarks, issuing invoices, customs declaration documents, etc.

If you are a cross-border e-commerce, the platform cost is also an expense that cannot be underestimated, and some booths and pay-per-click parts need to be spent.

utilities, customer reception, etc.