W.G. Spencer Engineering - Mechanical and Electrical Engineering for special applications in the mine hosting industry. - http://www.spencerengineering.com
Hepburn Engineering Inc. - Canadian designer and manufacturer of mine hoists and mine hoist electrical controls. - http://www.hepeng.com
JDC Pty Ltd. - Providers of winder driver and shaft management services. Operational area Australiawide . - http://www.winderdriver.com/