I used panjvia before so i can shed some light on this. Im fairly well versed in international trade as well. US customs data is very reliable and standardized

I used panjvia before so i can shed some light on this. Im fairly well versed in international trade as well. US customs data is very reliable and standardized, however china export data is not. The public data by itself is useless though - theres 4 or 5 companies in america that process it in a usable BI type format. Panjvia is one of those companies.