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
Factory Building C1-19, No. 668-34, Guankou South Road, Guankou Town, Jimei District, Xiamen City, Fujian Province, Xiamen, Fujian, China, 361022