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
3&7th Floor, Block a, Yinhuazhi Zone, 18th Chuangye Road, Shilongzai, Shiyan Town, Baoan District, Shenzhen, Guangdong, China