A report released by Rio Tinto has found that racism is common across a number of areas in the organisation, and poses a "significant challenge" for employees.
Nearly 40 per cent of the company's male First Nations employees said they had experienced bigotry and intolerance while at work.
"I have copped racism in every single corner of this company," one employee was anonymously quoted as saying.
Rio Tinto chief executive Jakob Stausholmin commissioned the report in the wake of public outrage over the destruction of the 46,000-year-old Juukan Gorge rock shelters.
The ancient caves were blasted to expand an iron ore mine.
The report also found bullying and harassment at the global mining giant were rife, with 21 complaints of actual or attempted rape or sexual assault lodged over the past five years.
The rock shelters before their destruction by Rio Tinto. The demolition of the ancient caves sparked the review into the company's culture. Source: PKKP AND PKKP ABORIGINAL CORPORATION
Nearly half of all employees who responded to the external review of the miner's workplace culture said they had been bullied.
Rio Tinto chief executive Jakob Stausholm said the results were "disturbing" and the company would implement all 26 recommendations from the report by former Australian sex discrimination commissioner Elizabeth Broderick.
"The eye opener for me was two-fold," Stausholm told Reuters.
"I hadn't realised how much bullying exists in the company and secondly that it's quite systemic - the three issues of bullying, sexual harassment and racism... that's extremely disturbing."
Rio Tinto said reforms will focus on a commitment from the company's leadership to create a safe and inclusive working environment, including by increasing diversity within the company.
The company said it would also attempt to make its remote mine site facilities are safe, and make it easier for staff to call out unacceptable behaviours.
