If you want to visit China and buy goods, ask your coordinator in China to send you two documents 1. Invitation Letter 2. Letter from Commercial Chamber.
Keep a copy of these documents with you as you may be asked for at inwards-customs as a NEW requirement.
You also need to inform customs about the details of person/company you are visiting.
Replying to [CTC Pakistan]: I used to China many times. The INVITATION LETTER must be from The Government Deparment (Foriegn Ministry Commerce circle) Best Regards Muhammad Aslam Memon ID int786
Replying to [int786]: You are right, this letter must be from Commercial Chamber (wa call it Chamber of Commerce and Industry). Now the requirement is that you bring a copy of these documents with you but at present they are not too much strict on this. I reached China before yesterday, one person only reminded me. But they did not check it. Gradually they will start asking it as a condition.
If you want to visit USA and buy goods, you ask your coordinator in USA to send you two documents 1. Invitation Letter 2. Letter from Commercial Chamber.
Keep a copy of these documents with you as you may be asked for at inwards-customs as a NEW requirement in the Embassy.
You also need to inform customs about the details of person/company you are visiting.