Under section 18 of the Western Australian Aboriginal Heritage Act, the traditional owners – in this case the Banjima people – are unable to lodge objections or to prevent their sacred sites from being damaged.

They are also unable to raise concerns publicly about the expansion, having signed comprehensive agreements with BHP as part of a native title settlement. BHP agreed to financial and other benefits for the Banjima people, while the Banjima made commitments to support the South Flank project.
— Read on www.theguardian.com/business/2020/jun/11/bhp-to-destroy-at-least-40-aboriginal-sites-up-to-15000-years-old-to-expand-pilbara-mine