PT09S HIV, HBV, HCV, and HTLV testing                                                  010103V1









              Certificate of Analysis

  (Attached)



               SOURCE MATERIAL TESTED AND FOUND

               NEGATIVE FOR ANTIBODY TO HIV AND

               ANTIBODY FOR HBV AND FOR HCV AND FOR HTLV





                               Caution



       1. These pathogen negative materials and derivative products are potential infectious

          materials.

       2. There is a possibility that testing result for HBV, HCV, HIV, and HTLV may be false

          negative.

       3. Current clinical testing kit may not detect mutated version of these virus.

       4. Products may contain some other unknown pathogens.







           Please handle this material or product as potential

           infectious

       1. Inform any personnel, customers, and users, who contact these materials or

          products, that these pathogen negative materials and derivative products are

          potential infectious materials.



       2. Adopt sterilizing procedure to handle pathogen negative materials and derivative

          products whenever and wherever possible.



       3. Protect the personnel who contact these pathogen negative materials and derivative

          products, and protect environment during using these materials.



       4. Treat pathogen negative materials and derivative products as potential infectious

          materials during experiment, testing, manufacture, production, packaging, shipping,

          handling, using, and disposing.



       5. Treat gel buffer, tips, tubes, bench top, containers, etc. contaminated by these

          materials or products with sufficient 2% bleach for 15 to 60 minutes to eliminate all

          potential infection









_____________________________________________________________________________

                               BioChain Institute, Inc.

                     3507 Breakwater Ave., Hayward, CA 94545

                        Tel: 1-888-762-2568 or 510-783-8588

                                 Fax: 510-783-5386