Mining magnate Andrew Forrest’s Minderoo charity makes undisclosed donation to the Australia Institute

Minderoo Foundation, founded by Andrew ‘Twiggy’ Forrest and his partner Nicola, lists the promotion of the real zero strategy as a key focus. Photograph: Lukas Coch/AAP

Andrew Forrest’s charity has made an undisclosed donation to the Australia Institute, raising transparency concerns about the funding of influential advocacy groups.

The donation to the progressive thinktank, which has been confirmed by several sources familiar with the deal but not authorised to comment, highlights differing disclosure standards across the research and advocacy sector.