| Jervois Mining, USA. | Idaho Cobalt Project | Salmon, ID | 8/1/2021 | In Progress | Highwall, Portal, Development, Production Mining | 618 | 0 | 0 | | | | | |
| i-80 Gold Corp. | Granite Creek Mine | Golconda, NV | 3/1/2021 | In Progress | Rehab, Drill Support, Bulk Sample, Development | 0 | 0 | 0 | | | | | |
| Nevada Gold Mines (Barrick Goldstrike Mines Inc.) | Turquoise Ridge | Golconda, NV | 9/1/2020 | In Progress | High Capacity Ground Support, Critical Development around 3rd Shaft | 9,709 | 0 | 40,488 | | | | | |
| Nevada Gold Mines | North Post | Carlin, NV | 4/1/2020 | In Progress | Rehab, Reinstall Utilities, Development Drifting | 4,305 | Nil | 0 | | | | | |
| Nevada Gold Mines (Newmont Mining Corp.) | Vista | Golconda, NV | 7/5/2017 | In Progress | 14′ x 16′ Development, 14′ x 16′ Sill Cuts, Long Hole Stoping, Backfilling, Full Production Mining | 29,025 | 1,282,027 | 987,032 | | | | | |
| Nevada Gold Mines (Newmont Mining Corp.) | Leeville | Carlin, NV | 8/1/2014 | In Progress | 15′ x17′ Development, Mining, Backfilling, Rehabilition, Installation of paste fill lines, various cellular filling | 37,575 | 215,973 | 427,638 | | | | | |
| Jerritt Canyon Gold | SSX | Elko, NV | 6/12/2014 | In Progress | 15′ x 15′ Development, Drift & Fill Mining, CRF, Shotcrete, Cubex drilling | 65,338 | 3,104,265 | 3,525,021 | | | | | |
| Jerritt Canyon Gold | Smith | Elko, NV | 3/1/2010 | In Progress | 15′ x 15′ Development, Drift & Fill Mining, CRF, Shotcrete (as of 12/14) | 108,595 | 4,190,579 | 3,379,911 | | | | | |
| Sabre Gold Corp. | Copperstone Mine | Quartzsite, AZ | 9/1/2021 | 2/2/2022 | Rehab, Reinstall Utilities. | 0 | 0 | 0 | | | | | |
| Nevada Gold Mines (Barrick Goldstrike Mines Inc.) | El Niño | Carlin, NV | 7/8/2018 | 7/31/2021 | Highwall stabilization, Two Portals, 16′ x 17′ Development, 15′ x 15′ Drift and Fill, CRF, Full Production Mining | 18,476 | 604,427 | 595,217 | | | | | |
| University of Arizona | San Xavier Minng Laboratory | Tuscon, AZ | 9/30/2020 | 3/31/2021 | Portal and 350′ of 15′ x 15′ drifting to create a modern facility | 359 | 0 | 0 | | | | | |
| Freeport McMoran Inc. | Mayflower | Frisco, CO | 6/1/2019 | 6/1/2020 | 12′ x 14′ Drainage Tunnel, Raise, and associated works | 1,160 | 0 | 0 | | | | | |
| Newmont Mining Corp. | Chukar | Carlin, NV | 9/1/2011 | 12/31/2019 | Portal, 16′ x 16′ Development, LHS & C&F Mining | 31,200 | 3,209,000 | 1,952,810 | | | | | |
| CRG Mining LLC | Gold Links Mine | Ohio City, CO | 7/1/2017 | 4/30/2018 | New Portal, 15′ x 15′ development, drifting on vein, stope mining, support drilling efforts | 1,127 | 1,500 | 0 | | | | | |
| Newmont Mining Corp. | Vista (Twin U/G) | Golconda, NV | 1/3/2016 | 10/15/2016 | 14′ x 16′ Development,14′ x 16′ Sill Cuts, Long Hole Test Stoping, Backfilling, Drill Support | 800 | 8,000 | 9,000 | | | | | |
| Carlin Resources | Hollister | Midas, NV | 5/15/2016 | 9/30/2016 | Rehabilitation of Existing Workings, Support for various tours | 0 | 0 | 0 | | | | | |
| Jerritt Canyon Gold | Starvation Canyon | Elko, NV | 10/1/2012 | 4/26/2016 | Portal, 15′ x 15′ Development, Establish Surface Infrastructure, Longhole stoping, limited cut and fill, CRF | 16,800 | 769,730 | 660,230 | | | | | |
| Gullsil, LLC | Diamond Mine | Eureka, NV | 9/14/2015 | 1/15/2016 | Open historic portal, rehab 1,500′ of 4′ x 6′ tunnel | 0 | 0 | 0 | | | | | |
| Atna Resources | Pinson | Humboldt County, NV | 5/20/2014 | 12/31/2015 | 15′ x 15′ Development, 13′ x 15′ cut and fill, limited long hole stoping, CRF backfill and Cubex definition drilling | 3,400 | 75,000 | 62,000 | | | | | |
| Juniper Mining, LLC | Golden Chest | Murray, Idaho | 7/1/2014 | 10/11/2015 | 13′ x 15′ Development, Drift & Fill Mining, CRF Backfill, Narrow Vein | 6,159 | 56,000 | 39,783 | | | | | |
| Waterton Global Mining Co. | Hollister | Midas, NV | 8/11/2014 | 7/31/2015 | 16′ x 16′ Exploration Drive, Miscellaneous Rehab of existing workings. | 1,292 | 0 | 0 | | | | | |
| Mojave Desert Minerals | Gold Road | Oatman, AZ | 10/1/2014 | 1/23/2015 | Haulage Only Contract | 0 | 20,000 | 0 | | | | | |
| Newmont Mining Corp. | Leeville Mining | Carlin, NV | 6/1/2005 | 6/12/2014 | 15′ x 17′ Development, 15′ x 15′, 15′ x 20′ Ore dev., LHS, Shotcrete | 83,000 | 1,850,000 | 4,500,000 | | | | | |
| Stockpile Reserves LLC | Fencemaker Mine | Pershing Co., NV | 7/1/2013 | 3/31/2014 | Rehabilitate existing portal and workings, extract new ore | 142 | 0 | 0 | | | | | |
| Curtis Tungsten | Andrew Mine | San Gabriel Mountains, California | 11/1/2013 | 1/31/2014 | Rehabilitate exisiting mine, drive secondary escape, stoping | 70 | 600 | 0 | | | | | |
| Newmont Mining Corp. | Carlin East / Full House | Carlin, NV | 2/1/2009 | 12/31/2013 | Combination LHS and underhand drift and fill to finish the mine | 25,000 | 389,100 | 410,000 | | | | | |
| Veris Gold Corporation | SSX | Elko, NV | 6/25/2012 | 5/31/2013 | 15′ x 15′ Development, Drift & Fill Mining, CRF, Shotcrete | 3,500 | 85,000 | 56,000 | | | | | |
| Newmont Mining Corp. | Vista | Golconda, NV | 2/15/2011 | 4/30/2013 | Two Portals, 16′ x 16′ Exploration Drive, Diamond Drill Stations | 16,300 | 9,000 | 0 | | | | | |
| Newmont Mining Corp. | Midas | Midas, NV | 1/15/2010 | 3/22/2013 | 16′ x 17′, 15′ x 15′, and 9′ x 12′ Development, 7′ x 12′ Cut & Fill, Cellular Concrete Backfill | 27,700 | 45,000 | 2,000 | | | | | |
| Klondex Gold & Silver Mining Company | Fire Creek | Crescent Valley, NV | 10/1/2010 | 1/20/2013 | Construct surface facilities, portal, exploration decline. | 5,000 | | | | | | | |
| Newmont Mining Corp. | Pete Bajo | Carlin, NV | 11/15/2010 | 12/31/2012 | Two Portals, 16′ x 16′ Development, Drift & Fill Mining, (As of 12/12) | 20,300 | 323,000 | 313,000 | | | | | |
| Highlands, LLC | Butte Highlands | Butte, MT | 1/1/2010 | 6/1/2012 | 14′ x 16′ Development, Drill Stations, Exploration Project. Assist drilling effort while on stand-by. | 4,500 | | | | | | | |
| Newmont Mining Corp. | Exodus – Phase 2 | Carlin, NV | 1/1/2010 | 3/31/2012 | Portal #2, 16′ x 16′ Exploration Decline, 15′ x 15′ Development, LHS Mining | 23,800 | 55,000 | 12,500 | | | | | |
| Newmont Mining Corp. | Deep Star | Carlin, NV | 7/1/2010 | 10/1/2011 | Access historic 5050 and 4440 levels. Mine approximately 15,000 tons of ore. | 1,750 | 22,000 | 26,000 | | | | | |
| Genesis, Inc. | Genesis Mine | Troy, MT | 2/1/2010 | 10/30/2010 | Drive 3,300′ of 20′ x 20′ Decline to access new ore block | 3,300 | | | | | | | |
| Newmont Mining Corp. | Chukar Footwall | Carlin, NV | 1/1/2002 | 12/31/2009 | Portals, 15′ X 15′ development, LHS & C&F mining | 52,000 | 2,620,000 | 1,250,000 | | | | | |
| Great Basin Gold | Esmeralda Mine | Hawthorne, NV | 7/20/2009 | 10/1/2009 | Re-establish surface, dewatering, rehabilitation of 300′ of 11′ x 12′ | | | | | | | | |
| Newmont Mining Corp. | Deep Post | Carlin, NV | 5/15/2009 | 9/1/2009 | Rehabilitation and active heading shotcrete application | | | | | | | | |
| Newmont Mining Corp. | Midas | Midas, NV | 3/10/2009 | 5/15/2009 | Mechanized bolting and support services for decline cave-in | | | | | | | | |
| Newmont Mining Corp. | Exodus – Phase 1 | Carlin, NV | 9/15/2008 | 5/15/2009 | Portal, 16′ x 16′ Exploration Decline, Drill Stations | 6,300 | | | | | | | |
| Mines Management | Montanore | Libby, MT | 8/15/2008 | 4/30/2009 | Rehabilitation and pumping water in 18′ x 18′ Decline, Various training | | | | | | | | |
| Genesis, Inc. | Genesis Mine | Troy, MT | 7/1/2008 | 12/20/2008 | Grout, Stabilize and drive through three fault zones, Mine room & pillar 20′ x 20′ | 200 | 40,000 | | | | | | |
| Newmont Mining Corp. | Full House | Carlin, NV | 7/1/2008 | 8/30/2008 | Rehabilitation of 1,500′, 15′ x 15′ Exploration Drift, Drill Stations | 850 | | | | | | | |
| Yukon Nevada Gold | Smith | Elko, NV | 7/1/2008 | 8/15/2008 | 15′ x 15′ Development, Drift & Fill Mining, CRF, Shotcrete | 500 | 2,000 | 1,000 | | | | | |
| Barrick Gold | Pinson II | Golconda, NV | 1/2/2008 | 6/30/2008 | 14′ x 16′ Development and Drill Stations | 1,500 | | | | | | | |
| Placer Dome / Barrick | Golden Sunlight 2 | Whitehall, MT | 12/20/2006 | 6/30/2008 | Portals, 15′ x 15′ Development, LHS, Rehab of GS #1 | 10,000 | 375,000 | | | | | | |
| Barrick / Meridian JV | Storm | Carlin, NV | 7/10/2006 | 6/30/2008 | Rehabilitation, 15′ x 15′ Development, Drift & Fill Mining, Shotcrete | 10,000 | 160,000 | 150,000 | | | | | |
| Placer Dome / Barrick | Cortez Hills | Crescent Valley, NV | 11/20/2005 | 6/30/2008 | Portals, Twin 17′ x 18′ Developments, Various constructions | 22,200 | | | | | | | |
| Placer Dome / Barrick | Getchell | Golconda, NV | 12/20/2002 | 6/1/2008 | Rehabilitation, 14′ x 14′ Drifting, Drift & Fill, LHS, CRF | 25,000 | 1,750,000 | 1,300,000 | | | | | |
| Molycorp, Inc. | Questa | Questa, NM | 1/10/2006 | 8/15/2007 | 11′ x 11′ Developments on draw point level | 12,500 | | | | | | | |
| Barrick Gold | Weird II | Carlin, NV | 12/1/2005 | 2/1/2007 | Portal, 15′ x 15′ Develoment, Underhand Drift and Fill | 2,000 | 80,000 | 50,000 | | | | | |
| Atna Resources | Pinson | Golconda, NV | 6/1/2005 | 4/1/2006 | Portals, U/G shop, 14′ x 16′ Development, Drill stations | 3,000 | | | | | | | |
| Newmont Mining Corp. | Carlin East | Carlin, NV | 8/10/2004 | 2/1/2006 | Combination LHS and underhand drift and fill to finish the mine | 1,000 | 85,000 | 50,000 | | | | | |
| Newmont Mining Corp. | Carlin Main | Carlin, NV | 8/10/2004 | 2/1/2006 | Combination LHS and underhand drift and fill to finish the mine | 500 | 14,000 | 10,000 | | | | | |
| Barrick Gold | Weird I | Carlin, NV | 8/1/2005 | 1/1/2006 | Portal, 15′ x 15′ Develoment, Underhand Drift and Fill | 500 | 20,000 | 12,000 | | | | | |
| Barrick Gold | Betze Drift | Carlin, NV | 8/1/2004 | 11/1/2005 | Portal, 17′ x 17′ Development to Rodeo plus Exploration drifting | 4,000 | | | | | | | |
| Snowbird Resort | Peruvian Tunnel | Salt Lake City, UT | 8/17/2005 | 10/15/2005 | Portals, 11′ x 13′ tunnel through the mountain, shotcrete finished 9/2006. | 600 | | | | | | | |
| Queenstake Resources, USA | Steer Project | Elko, NV | 4/1/2004 | 12/15/2004 | 14′ x 16′ Development and Cubex Drilling | 5,000 | | | | | | | |
| Queenstake Resources, USA | MCE Project | Elko, NV | 6/1/2004 | 7/20/2004 | Finishes LHS work at MCE while Steer was ramping up | | 31,000 | | | | | | |
| Barrick Gold | Storm Exploration Drift | Carlin, NV | 4/1/2004 | 7/10/2004 | 15′ x 15′ Development, Drifting for stope access, Cubex drilling | 2,000 | | | | | | | |
| Placer Dome, LTD | Golden Sunlight | Whitehall, MT | 7/10/2002 | 2/1/2004 | Portals, 14′ x 14′ Development drifting, LHS mining | 9,150 | 520,000 | | | | | | |
| Barrick Gold | Storm Rehabilitation | Carlin, NV | 5/15/2003 | 8/15/2003 | Rehabilitation and reinstallation of utilities for 3,600′ | | | | | | | | |
| Billings Bench Water Dist. | Water Tunnel | Billings, MT | 3/10/2003 | 4/15/2003 | Shotcrete and bolting only | | | | | | | | |
| Phelps Dodge Corp. | Henderson U/G | Henderson, CO | 6/15/2002 | 3/1/2003 | Initial project was 7′ x 8′ water drifts, ended with 25′ x 33′ draw points | 3,000 | | | | | | | |
| Canyon Resources Corp. | Briggs North | Trona, CA | 9/15/2001 | 8/31/2002 | Portal, 14′ x 14′ Development, Inclined room and pillar with 75% extraction | 1,500 | 120,000 | | | | | | |
| Anglo Gold Corp., USA | Smith Mine | Elko, NV | 11/15/2001 | 4/15/2002 | 15′ x 15′ Development drifting and stope preparations | 2,500 | | | | | | | |
| Newmont Mining Corp. | SMD Rain Sub-Contract | Carlin, NV | 4/10/1999 | 4/15/2002 | Continued Rain mining on a guaranteed $ / ounce delivered to portal | 6,000 | 421,000 | 25,000 | | | | | |
| Vortex Mining | Vortex Mine | Utica, MT | 10/1/2000 | 12/20/2001 | 8′ x 9′ Trackless development plus 20,000′ Cubex RRC drilling | 3,000 | 75,000 | | | | | | |
| Newmont Mining Corp. | Deep Post | Carlin, NV | 4/15/1999 | 8/29/2001 | Portals, 14′ x 15′ Multiple developments with various construction activity | 13,500 | 35,000 | | | | | | |
| Echo Bay Minerals Corp. | Cove East, Cove South | Battle Mountain, NV | 3/15/1999 | 7/15/2001 | Portals, 12′ x 12′ Development, LHS w/ delayed CRF and underhand drift & fill | 8,500 | 350,000 | 140,000 | | | | | |
| Pegasus Gold Corp. | Diamond Hill Mine | Townsend, MT | 2/15/1996 | 12/20/2000 | Portal, 14′ x 14′ Development with LHS and remote mucking | 12,000 | 850,000 | | | | | | |
| Glamis Gold Corp. | Dee North U/G Mine | Dunphy, NV | 11/1/1999 | 12/15/2000 | Combination LHS and underhand drift & fill | 3,000 | 315,000 | 120,000 | | | | | |
| Anglo Gold Corp., USA | SSX Mine | Elko, NV | 8/15/2000 | 11/1/2000 | 70,000′ of sample drilling | | | | | | | | |
| Golden Arrow Mining LLC | Golden Arrrow Mine | Lewiston, MT | 6/1/2000 | 9/15/2000 | 5′ x 7′ Trackless development | 200 | | | | | | | |
| Newmont Mining Corp. | Rain Mine | Carlin, NV | 9/15/1993 | 4/1/1999 | Portal, 10′ x 12′ Development, combination LHS and underhand D & F | 12,000 | 500,000 | 300,000 | | | | | |
| Anglo Gold Corp., USA | SSX Mine | Elko, NV | 10/1/1998 | 3/15/1999 | 50,000′ of sample drilling | | | | | | | | |
| Newmont Mining Corp. | Carlin Main | Carlin, NV | 5/15/1995 | 2/28/1998 | Portal, 12′ x 12′ Development with combination LHS and underhand D & F | 5,000 | 200,000 | 120,000 | | | | | |
| Newmont Mining Corp. | Carlin West | Carlin, NV | 3/1/1996 | 12/1/1997 | Portal, 12′ x 12′ Development plus stope preparations | 3,000 | | | | | | | |
| Newmont Mining Corp. | Deep Star | Carlin, NV | 2/1/1994 | 9/1/1996 | Portal, 14′ x 14′ Development drifting with various construction activity | 10,000 | | | | | | | |
| Newmont Mining Corp. | Carlin East | Carlin, NV | 9/15/1993 | 9/15/1995 | Portals, 14′ x 14′ Multiple heading development, test LHS mining with CRF | 5,000 | 100,000 | 60,000 | | | | | |
| The Homestead | Heber City, UT | Homestead Hotpot | 4/15/1995 | 8/15/1995 | Portal, 6′ x 8′ Drift into center of hotpot for scuba diving access | 100 | | | | | | | |
| Battle Mountain Gold Corp. | Crown Jewel Project | Oroville, WA | 5/20/1995 | 5/30/1995 | Portal closure with concrete and grouting | | | | | | | | |
| Diversified Development | Lone Jack | Mt. Baker, WA | 8/15/1994 | 11/1/1994 | Open stoping on narrow gold vein | | 2,000 | | | | | | |
| Diversified Development | Lone Jack | Mt. Baker, WA | 8/15/1993 | 11/15/1993 | Open stoping on narrow gold vein | | 2,000 | | | | | | |
| Echo Bay Minerals Corp. | McCoy Mine | Battle Mountain, NV | 4/1/1990 | 4/1/1993 | BCI-2 stope drilling and blasting | | | | | | | | |
| Battle Mountain Gold Corp. | Fortitude U/G | Battle Mountain, NV | 10/1/1992 | 3/1/1993 | Portals, Three concurrent development areas with various mining methods | 3,000 | 60,000 | | | | | | |
| Echo Bay Minerals Corp. | Kettle River Mine | Curlew, WA | 4/1/1990 | 12/15/1992 | BCI-2 stope drilling and blasting | | | | | | | | |
| Precious Metals Inc. of TX | Klondike Project | Kingston, NV | 4/1/1992 | 11/15/1992 | 10′ x 10′ Development with inclined room and pillar slusher mining | 800 | 2,000 | | | | | | |
| Fischer-Watt Gold Corp. | Mystic Mine | Sun City, AZ | 4/1/1992 | 9/1/1992 | Converted an out of control shrinkage stope to long-hole stoping | 1,000 | 15,000 | | | | | | |
| Western Utility Contractors | Deer Creek Pipeline | Provo, UT | 7/15/1992 | 8/15/1992 | Backfilled 400′ of abandoned 8.5′ diameter pipeline | | | | | | | | |
| Alta Gold Corp. | Red Ledge Property | Halfway, OR | 5/15/1992 | 7/15/1992 | EPA Mine closure with helicopter support in Snake River Wilderness | | | | | | | | |
| Cyprus Pinos Altos Corp. | Pinos Alto Mine | Silver City, NM | 3/15/1992 | 5/1/1992 | Raise cut outs plus raising | | | | | | | | |
| South Atlantic Ventures | Oracle Ridge Mine | San Manuel, AZ | 6/1/1990 | 1/15/1992 | 14′ x 14′ Development drifting, Room and pillar mining | 3,000 | 150,000 | | | | | | |
| Hecla Mining Corp. | Apex Project | St. George, UT | 3/1/1990 | 6/15/1991 | 8′ x 10′ Developments plus 4′ x 6′ top cuts and underhand cut & fill | 1,500 | 25,000 | | | | | | |
| Cedar Resources | Platoro Project | Platoro, CO | 4/1/1990 | 1/15/1991 | Exploration drifting | 3,000 | | | | | | | |
| Magma Copper Corp. | San Manuel Mine | San Manuel, AZ | 8/1/1990 | 11/1/1990 | Cubex rotary reverse circulation drilling for leach water return | | | | | | | | |
| Cyprus Gold Corp. | Copperstone Mine | Parker, AZ | 3/15/1989 | 6/1/1989 | Portal, 7′ x 8′ Exploration into pit wall (First time out of a pit wall) | 400 | | | | | | | |
| Cedar Resources | Platoro Project | Platoro, CO | 6/1/1988 | 6/1/1989 | 14′ x 14′ Development, Exploration drifting, test mining on a Vein | 4,000 | | | | | | | |
| Western Utility Contractors | Deer Creek Pipeline | Provo, UT | 4/1/1989 | 4/15/1989 | Backfilled 400′ of abandoned 8.5′ diameter pipeline | | | | | | | | |
| Eastmaque Gold Corp. | American Girl “B” Zone | Winterhaven, CA | 3/1/1986 | 11/1/1988 | 12′ x 13′ Development drifting, Test mining, Various construction | 8,000 | 20,000 | | | | | | |
| CoCa Mines, Inc. | Cactus Mine | Mojave, CA | 5/1/1987 | 8/1/1987 | Exploration drifting to drill hole intercepts | 300 | | | | | | | |
| Musto Exploration, LTD | Apex Project | St. George, UT | 1/15/1983 | 7/1/1987 | Development, Ore mining, Various construction | 3,000 | 25,000 | | | | | | |
| Verdestone Mining | Verdestone Mine | Gardnerville, NV | 8/1/1982 | 8/15/1982 | Claim assessment work | | | | | | | | |
| Total | | | | | | 835,400 | 25,279,201 | 20,586,630 | | | | | |
| | | | | | | | | | | | | |
| | | | | Current Year | 0 | 0 | 0 | | | | | |
| | | | | | 835,400 | 25,279,201 | 20,586,630 | | | | | |
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