Activist investor Palliser Capital and over 100 other shareholders on Thursday called for a resolution over an independent review of Rio Tinto's dual-listed model to unify its corporate structure.

Palliser Capital doubled down on its call for a review of Rio Tinto’s dual listing in London and Sydney, adding that it now has the backing of more than 100 shareholders.

Palliser Capital UK Ltd has sought to put more pressure on Rio Tinto Group to unify its dual listing by submitting a resolution to conduct a review into the structure at its annual shareholder meeting.

More than 100 Rio Tinto shareholders have called for a resolution that could see the miner quit its primary London listing and unify its corporate structure. Activist investor Palliser Capital is pushing the world's biggest iron ore producer to abandon its primary London listing and unify its corporate structure in Australia.