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
Yantian, Guangzhou, Shekou
Address
Room 309, Building 1, No. 2, West 5th Street, Hadi Xin South Road, Nancheng Street, Dongguan, Guangdong, China, 523000