PropTester, Inc. 17222 Huffmeister Road Cypress, Texas 77429 Phone – 888-756-2112 Fax – 281-754-4054

Chief Executive Officer Don Anschutz Don@PropTester.com Office – 888-756-2112

Chief Financial Officer and Chief Operating Officer Richard Derbawka RDerbawka@PropTester.com Office – 888-756-2112

Sales and Marketing Mark McGill MMcGill@PropTester.com Office – 713-352-3718 Cell – 713-703-6466

Administration Manager/ Careers Amanda Chavey AChavey@PropTester.com Office – 888-756-2112

Conductivity and Physical Properties Lab Manager David Stewart DStewart@PropTester.com Office – 713-352-3706 Cell – 936-662-7962