Sovereign Group of Companies
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Testimonials
Xstrata Nickel Australasia Pty Ltd (2010)
To Whom It May Concern:
Re: Work conducted by Sovereign Hydroseal at Cosmo Nickel Operation

The Recent work carried out by Nico Grobler of Sovereign Hydroseal at Prospero Mine’s Ventilation Shaft involved curtain grouting of 10 diamond drill holes, ØHQ from surface down to a depth of 100m below surface.

The work carried required stringent engineering control due to the proximity of the grout holes relative to the shaft lining and required efficient use of grouting product targeting specific aquifer zones in the rockmass surrounding the shaft area.

I was impressed with the professional and efficient manner in which this project work was carried out as well as the facet that timelines for completion were closely met.

I recommend the quality of work and professionalism that Sovereign Hydroseal displayed during this project.

Yours truly,

Shaun Van Der Merwe
Alternate Underground Manager
Cosmos Nickel Operation
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