The Surface Mine Limited | 16th April 2012 to 6th January 2014 |
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The Waste Mine Limited | 6th January 2014 to 26th February 2015 |
Ostara Cleaning Technology Limited | 26th February 2015 to 13th October 2016 |
Ostara Caregivers Ltd | 13th October 2016 to 4th July 2017 |