Certification of Compliance

Bismuth  99.99%

Bismuth  Ingot Chunk 4n 99.99 Pure

PO FY19ENGINEERING006

                                                                                                        

                           Elements            Purity (% Min)           

Test Date 5/01/19

Lot 050119

 Bismuth   > 99.9949

Impurity (% Min)

Copper              0.0003%

Lead              0.0006%

Zinc               0.0002%

Iron               0.0002%

Silver             0.0024%

Arsenic           0 .0002%

Antimony        0.0002%

Tellurium          0.0002%

Chlorine           0.0008%

   

Material Quality Manager

Gary Cooper

05/02/19