...
Mr Katter said he's been previously duped by the Coalition when he had to deal with Tony Abbott.
This time around, he won't rely on a verbal undertaking from the Coalition but will insist any pledges are made in writing.
"There was some misrepresentation the last time," he said.
"I was given an undertaking on ethanol and that undertaking was not carried through.
"I would most certainly be working to seek those arrangements in writing."
Mr Turnbull held a brief and impromptu press conference, calling his meeting with the Kennedy MP "very good and constructive".
Mr Katter warned the Coalition not to pick on the union movement in the same way Mr Abbott went after them.
"If there is the slightest hint of union bashing, and I can assure you all bets are off," he said.
