Throughout its history, AusIMM members have made significant contributions to the resources sector. Pyritic smelting, flotation and gold tellurides treatment processes are examples of internationally significant innovations made by AusIMM members. These works featured in the early papers published by AusIMM.
In the beginning, membership was limited to qualified professionals in major technical disciplines within the resources sector – namely mining engineering, metallurgy and geology. It was not until the 1990s that membership was broadened to include professionals with qualifications in non-mining disciplines but with a connection to the industry.
Membership continued to grow steadily in AusIMM's early years, totalling 234 in 1903 and reaching 722 by the end of 1912.
AusIMM's head office was originally located in Broken Hill but soon moved to Melbourne and has remained there since.