Sovereign Group of Companies
Our new ideas and innovative products make us a lively, enthusiastic company, striving to make a positive difference in the world of sealing technologies.
Company
History
Major projects undertaken by Sovereign Group of Companies using our patented products and technology include:
  • Foscor Mine - Cooling stacks seal. Phalaborwa, RSA 1975
  • Pretoria Portland Cement - Underground Tunnel. Transvaal, RSA. 1978
  • Elandsrand Gold Mine - Shaft RSA (first high pressure contract) 1979
  • Leeudoring Mine - Levels RSA 1979
  • Doringkop Mine - Levels RSA 1979
  • Wesdriefontein Mine - No 7 shaft and haulages. Transvaal RSA 1980
  • Brand Mine - No 5 Shaft. RSA 1980
  • Namibia Gold Fields – Mine Haulages. Namibia 1980
  • Crocodile Creek Mine / Porolus – Mine Haulages 1980
  • Moab Mine - No 12 Shaft 1981
  • Vaal Reefs Mine No 8 Shaft - Underground storage dams. Transvaal RSA 1981
  • West Driefontein Gold Mine, Vaal Reefs - No 9 Shaft. Transvaal RSA. 1981
  • West Driefontein Gold Mine, Vaal Reefs No 11 Shaft. Transvaal, RSA 1981
  • President Steyn Mine No 4 Shaft - Refrigeration dams. RSA 1982
  • Deelkraal Gold Mine - underground dams in fractured rock. RSA 1983
  • Libanon Mine - Levels. Transvaal, RSA. 1984
  • Western Deep Levels - Main shaft & ventilation shaft. Transvaal, RSA. 1987
  • Kloof Mine - Number 4 shaft & haulages. Transvaal, RSA. 1988
  • Monktonhall Colliery - No 1 & 2 shafts. (Cementation Mining Ltd UK JV), Scotland. 1988
  • Blyvooruitzicht Gold Mine - Fan chamber (level 6). Transvaal, RSA. 1989
  • Northam Platinum Mine - No 1 shaft. Transvaal RSA. 1989
  • Samancor - Waterkloof Mine raise bore. RSA. 1990
  • Victor 1 Shaft Lightning Nickel Mine - Western Australia 1990
  • Pasminco Mining - Broken Hill South Mine (5 shaft). NSW 1990
  • Rosebery Mine - Tasmania 1991
  • Emerald Mine - Western Australia 1991
  • BHP - Crinium Mine. Up-cast shaft (Cementation Mining Ltd. JV), UK. 1991
  • Thames Water Board, Dartford Tunnel - East. London. (Cementation Mining Ltd JV) UK. 1992
  • Normandy Golden Grove - Scuddles Mine - vent shaft. WA 1992 & 1993
  • Hazelbrook Main Sewer Tunnel - (Costain Contractor Public Works Dept) NSW . 1993
  • Prospect Water Tunnel (Costain Resources) NSW. 1993
  • Gwithian Outfall Shaft - Sewerage tunnel. Penzance, Cornwall (Cementation Mining Ltd JV), UK. 1993
  • Finch Mine - Ore passes & levels (2 contracts). Northern Cape, RSA 1994
  • Koffiefontein Diamond Mine - Ore passes. Orange Free State, RSA 1995 - 1996
  • North Limited - Kanowna Belle Gold Mines - ventilation rise. 1996
  • Transfield / Kumagai JV - Port Hedlan Harbour TBM Tunnel for BHP. 1997
  • Gold Mines of Australia - Youanmi Gold Mine (decline pre-grout) 1996 & 1997
  • Normandy Golden Grove - Gossan Hill mine. WA 1997
  • Du Toits & Wesselton Diamon Mine - Ore passes. Northern Cape, RSA. 1997
  • Northam Platinum mine - No 2 shaft. Transvaal, RSA. 1997-1998
  • Odendaalsrust Grain Silos - Intake hoppers. Orange Free State, RSA 1998
  • Holzman - Franki JV - Outfall tunnel, Stone Cutters Island, Hong Kong. 1998
  • British coal - Whitemoor Mine. No 2 shaft. (Cementation Mining Ltd. JV), UK. 1998
  • Coalbrook Colleries No 1 Shaft (Cementation Mining Ltd. JV), UK. 1998
  • Hargraves Resources NL - Browns Creek Mine. NSW 1998
  • Western Metals NL - Cadjebut Zinc Mine / Kapok Decline - pre grout decline. WA 1998
  • OTK - Ogies Grain Silo - floors and conveyor trenches. South Africa. 2002
  • Underground Military Installation - a series of tunnels. (Undisclosed location). 2003
  • Voortrekker Monument - Pretoria, South Africa. 2003-2005
  • Pension Fund Underground Archives - Pretoria, South Africa. 2004
  • Western Areas NL - Flying Fox Mine, Decline - WA, 2006
  • Newcrest Mining – Telfer Project – Ore pass – WA, 2006
  • Gold fields - St Ives Gold Mine - Belleisle mine WA, 2007 & 2008
  • Empire District Electric Company / BSC Holding Inc. /Sega Inc. CAES Bulkhead – KS, 2008
  • Lyons Salt Mine, Underground Level – KS, 2008
  • Cargill - Avery Island Salt Mine, Underground Levels trial – LA, 2008
  • Mosaic Potash Esterhazy K2 Plant, Underground Levels – Canada 2008, 2009, 2010
  • Xstrata Nickel Mine - Tapinos Ventilation Shaft / Rehabilitation – WA, 2008
  • Barrick (Granny Smith) Pty Ltd – Wallaby Portal / VR2 Vent Shaft /Rehabilitation – WA, 2008
  • Xstrata Nickel Mine – Cosmos Deep levels – WA, 2009
  • Xstrata Nickel Mine – Tapinos Underground Levels – WA, 2009
  • AngloGold Ashanti – Sunrise Dam. Levels, Portal and Vent Shaft /Rehabilitation - WA, 2010
  • Lightning Nickel Mine – Moran Ventilation Shaft / Raise Bore – WA, 2010
  • Xstrata Nickel Mine – Prospero Ventilation Shaft / Raise Bore – WA, 2010
  • CBH Group – Tunnels, Silos sites throughout – WA Australia 2006, 2007, 2008, 2009, 2010
  • Granite - Traylor - Frontier JV C/O MTA (Metropolitan Transport Authority of New York) East Side access, Q-Tip. Slurry wall repair - Panel 109 A Queens Bored Tunnels, NY. USA – 2011
  • Thyssen Mining Construction of Canada C/O Snap Lake Mine / De Beers Canada Inc. Levels 100A / Z12 / C10 – total of 5000Lt/min sealed off in 7 grout shifts. NWT Canada - 2011
  • Schiavone - Kiewit JV C/O MTA (Metropolitan Transport Authority of New York) East side access, Q-Tip. Panel 43 leaks (Tie Backs and slurry walls) Queens, NY. USA – 2012
  • Thyssen Mining Construction of Canada C/O Cigar Lake Mine / Cameco Corp. – Shaft Backwall grouting against freeze wall / formation - shaft #2, Cigar Lake Mine, Saskatchewan, Canada 2012.
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