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
Tian Jin/ Qing Dao
Address
People and Street, Exit No. 1 East Road, South Fangyuan Residential Area, 200 Meters West of The Gate, to The North of The Road, Liaocheng, Shandong, China, 252000