Cutting Edge Core Drilling, Inc. 1985 FM 969, Elgin, TX | 512-914-8872 | info@cuttingedgecoredrilling.com REGIONAL MINING PROJECTS         Clifton TX. / Marble Falls,TX. / Nolanville, TX. / New Braunfels, TX. / Buda, TX. / Hondo, TX.         Quarry Exploration       Quarry Expansion        2010 through current 2019        NQ / HQ cores                                                                                                                                                                                                                                                                                                                                                                          REGIONAL TUNNEL PROJECTS         COA Orange Line and Blue Line                              2020   SAWS 6  San Antonio TX.                                                     2019   BCURA  Lake Travis                                                       2016-2019    Jollyville Tunnel Force Main                                                   City of Austin                                                                                                               2010                Forest Ridge Force Main                                                   City of Austin                                                                                                               2009 South I.H. 35 / Waste Water       City of Austin                                                                                                      2008/2009        Downtown / Waste Water                                                     City of Austin                                                                                                     2007                Waller Creek / Waste Water                                           City of Austin                                                                                                      2007                   BCURA Regional / Waste Water                                     Multiple entity consortium                                                                             2006/2007                       Harpers Branch / Waste Water                                      City of Austin                                                                                                       2006          McNutt Creek/ Waste Water                                           City of Round Rock                                                                                               2004                 BCLRT / Waste Water                                    City of Cedar Park                                                                                                 2004                    Notheast Drive / Waste Water                                           City of Austin                                                                                                           2003

City of Austin                            2003       Notheast Drive / Waste Water       Bore depth  150ft       Project services: Angle bore SCIOA / Waste Water                             City of Austin                                                 2003   Bore depth  75ft Project services: Angle bore  Brushy Creek / Waste Water                       LCRA                                                                 2001  Bore depth 25ft / 100ft     Project services: Packers, monitoring wells REGIONAL DAM PROJECTS      State of Texas Water Conservation Dam Rehab     2019 -2020 Red Bluff Water Control / Red Bluff Dam               Pecos County                                                                                             2012 Bore holes ranged from 160ft /200ft Project services: Geotechnical Core Bores Bexar County Flood Control / Olmos Dam               Bexar County                                                                                             2008 / 2009 Bore holes ranged from 70ft / 160ft Project services: Angle Bores,Packers, Vibrating wire monitor wells   Medina Dam Federal Homeland Security Evaluation                     Lake Medina Dam                                                                                        2003/2006 Bore holes ranged from 75ft / 160ft Project services: Packers                                                                                                                                                Comal County Flood Control                        Comal County                                                                                                       2006 / 2010 Bore holes ranged from 75ft / 180ft Project services: Packer          Lake Applewhite Reservoir        San Antonio, TX.                                                                                                  1986        Bore holes ranged from 75ft / 100ft         Morris Sheppard Dam Rehab               Possum Kingdom Lake                                                                                1984/1988       Bore holes ranged from 55ft / 150ft       Project services: Monitoring wells, extensometers and angle bores

REGIONAL CLIENT LIST: Alliance Geotechnical Group                                                          Arias & Associates                                                                            BRIERLEY ASSOCIATES                                                                  Black & Veatch Corporation                                                      Epsilon Engineering & Material, LLC                                             Freeze and Nichols, Inc.                                                                           Fugro Consultants, Inc.                                                                  Gregory Geotechnical                                                              Hayward Baker, Inc.                                                                        Henley-Johnston & Associates, Inc                                                          Holt Engineering, Inc.                                                                      HVJ Associates, Inc.                                                                                     HDR Inc.                                                                                               LAN, LLP                                                                                                 Lhoist North America                                                                         MTEC,Companies  Ollson Inc.                                                                                  Schabel Management Services, Inc.                                            S.J.Louis Construction Texas , LTD                                              Raba Kistner                                                                                        Texas Lehigh Cement Company Terracon                                                                                                     URS Corp.                                                                                              U.T. Dept. Geotechnical Engineering