What this checklist helps you decide
A demand letter to a Chinese supplier works best when it is tied to the right Chinese legal entity, a clear payment trail, written delivery or refund promises, and a realistic next step if the supplier ignores the letter.
Use this checklist before you ask for a lawyer letter, especially if the supplier has stopped replying after a deposit, refused a refund, delayed shipment, delivered defective goods, or moved the discussion into WeChat messages.
The result is not a legal opinion. It is a quick way to spot missing evidence before you spend legal budget or warn the supplier too early.