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
SHEKOU, YANTIAN, GUANGZHOU
Address
Room 1308, Building F, Bantian International Center, No. 5, Bantian Huancheng South Road, Ma'antang Community, Bantian Street, Longgang District, Shenzhen, 518000