Australian Rail Track Corporation National - Tier 1 CMOC Mining Services New South Wales - Tier 1 CMOC Mining Services Mining - Tier 1 Downer EDI Mining Queensland - Tier 1 SIMEC New South Wales - Tier 1 SIMEC Mining - Tier 1 SMW Drilling Services New South Wales - Tier 1 SMW Drilling Services Mining - Tier 1 Deicorp Pty Ltd New South Wales - Tier 2 Kirkland Lake Gold Victoria - Tier 2 Kirkland Lake Gold Mining - Tier 2 Resources Safety and Health Queensland Queensland - Tier 2 Resources Safety and Health Queensland Mining - Tier 2 RUC Cementation Mining Western Australia - Tier 2 RUC Cementation Mining Mining - Tier 2 ANEWX New South Wales - Tier 3 Harvey Developments Northern Territory - Tier 3 MSP Group Western Australia - Tier 3 Neumann Steel Queensland - Tier 3 Site Vehicle Rentals Queensland - Tier 3