The Royal Army of Oman (RAO) has awarded AES a 3 year extension to their Machine Care Plus® contract for the provision of oil sampling and analysis services. In addition, the scope of the contract has also been increased and now includes support for Challenger 2 (CR2) Main Battle Tank (MBT), Challenger Armoured Repair and Recovery Vehicle (CRARRV), M60 MBT, G6 Self-Propelled Howitzer and Piranha Armoured Personnel Carrier .