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 Port, Nansha Port, Shekou Port
Address
Room 101, Unit 2, Building 2, No. 5, Dongye Road, Houjie Town, Dongguan, Guangdong, China, 523960