An overwhelming number of registered exhibitors are forcing QME to being work six weeks before its usual July start date.
According to event organiser Reed Exhibitions, as early as February the show was already 90% booked out.
Event director Paul Baker added that "we expect QME 2012 will be sold out" soon.
The previous event in 2010 saw more than 550 exhibitors and 10 700 visitors spread out over 14 000 square metres.
This year QME has more than 600 exhibitors, and following the addition of another 1000 square metres, expects this number to rise to 650 exhibitors.
The show will also host a number of theme days, in a similar vein to AIMEX last year.
"At Reed Mining Events during 2011, we introduced programs aimed at attracting more women, ‘frontliners’ – operators, maintenance crews, supervisors and foremen – and community people involved in the mining industry," he said.
"These proved very successful, and we’ll be building on them for QME 2012 – with further details to be announced in the near future.
"We will also be incorporating a recruitment element in QME, aimed at people who are looking to careers in the mining industry.
"QME 2012 will incorporate the ‘QME Community Hub’ – which will involve community-based organisations such as the Mater Foundation and Mining Family Matters – around which these programs and initiatives will be based."
The event runs from 24 to 26 July.