The Australian Electoral Commission donations dump today reveals minor parties are flush with donations from eager candidates and elected representatives, but some also have the backing of big unions and businesses.

As Clive Palmer exited Parliament and his party effectively collapsed in the lead-up to the last election, Palmer's mining businesses continued to pump money into the party, with Mineralogy, QN Resources and QN Metals, along with Palmer himself and PUP candidate Suellen Wrightson pumping over $2.2 million into the party.