While no financial details were released, the Australian company said the mining and energy auction house was selected from a large number of applications from an open market tender.
NMX general manager Simon Brown called its appointment "a testament to the flexibility of our approach" as a service that also helps clients devise dynamic, appropriate solutions.
"NMX developed an appropriate sales and remarketing strategy that included traditional and digital marketing approaches. After evaluating our clients' needs, we recommended the sale of assets on an ‘as is where is' basis with the utilisation of the National Group's wider industry network and communication vehicles.
"With NMX being part of the National Group of companies, we were also able to offer various benefits, efficiencies and therefore cost savings through complementary entities, such as National Heavy Haulage".
NMX formally opened the tender campaign for the sale of Cat parts on March 8. The offer call will end April 5, and includes parts and components on an ‘as is, where is' basis.
Bidding information can be found here.