Certificate No. 5526659 Utility model patent certificate Utility model name: a multi-functional explosion-proof and flood-proof sandbag and its sand wall Inventor: Qiao Hui Patent No.:

Certificate No. 3395104 Withholding special surface Appearance design patent certificate Appearance Design Name: barrier Designer: Qiao Hui Patent No.: ZL 2015 30151336.3 Patent application date:

Certificate No. 3402678 Appearance design patent certificate Appearance Design Name: Sand Wall (1) Designer: Qiao Hui Patent No.: ZL201530151557.0 Patent application date: May 15, 2015

Enterprise credit rating certificate CREDIT RATING   People’s Republic of China enterprise credit investigation business operation record certificate: 10016   This is to certify Hebei

  QUALITYMANAGEMENTSYSTEM CERTIFICATE Certificate No.: 04621Q11794RON We hereby certify that the organization: JOESCO HEBEI METAL PRODUCTS INC Unified social credit code: 911311253201352038 is in conformity

NB 1888 “NJN”  Ltd. 6300 Haskovo, locality “Kamenets” Regulated plot 267 Certificate of Conformity of the Factory Production Control № 1888-CPR-051-CN In compliance with Regulation