Sovereign's specialised Drilling and Grouting services have operational bases in Australia, Singapore, Russia, Canada and the USA. From these operational bases, specialised equipment and staff can be efficiently mobilised to all corners of the globe. All grouting research and grout manufacturing is conducted in Perth, Western Australia, and New York USA. Grout designs for grout curtains and prophylactic in-situ sealing programmes are constantly developed with international key partners – all with many years of grouting experience in sealing unwanted groundwater in mines and tunnels.