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
Qingdao Port, Shenzhen Port
Address
North of Hengfeng Paper, Balimiao, Anju Street, Rencheng District, Jining, Shandong, China, 272000