Chinese domain names:
Hip Sing Packaging Products (Shenzhen) Co. Ltd (http://o-o-u.com/),
Hip Sing Packaging Products (Shenzhen) Co. Ltd (http://o-o-u.com/)
Hong Kong email: sales@hipsing.com.hk
Shenzhen email: hipsing@21cn.com
Hong Kong website: www.hipsing.com.hk
Shenzhen website: o-o-u.com