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.
Address
No. 4 Self-Made No. 1, 4th Floor, Zone a, Building 4, Shajinheng Industrial Park, Plot 46-2, High Tech Zone, Jianghai District, Jiangmen, Guangdong, China