A visit — yours or an inspector's — is the surest check on a new supplier. Send a date and what you want to see; the request reaches them as an enquiry you can track.
Nearest Port
Tianjin Port
Address
Building 3, No. 41 Kexin Road, Changping District, Beijing - Floors 1 to 9, Unit 101, Floor 8, Room 802-04, 102200