Queensland's premier has declared he will not break election promises as his government faces pressure from mining companies blaming "unsustainable" coal royalties for job cuts.

In his first State of the State address Premier David Crisafull said Queensland is "open for business", but only for companies who want to be "part of the fabric of who we are".

"We are not interested in fair-weather friends who come running for the dollars when things are good and then abandon Queenslanders in the name of shareholder interests," he said.

"When I say we are open for business, it also means we are open to suggestions on how we can improve the investment environment here in Queensland.

" While we will not break our election commitments, we are open-minded on what form those improvements take for

See Full Page