"While challenges are part of the uncertain environment that we operate in... we have the right strategy and teams in place to create sustainable shareholder value."
CEO Andrew Mackenzie said it was too early to say what impact the recent Vale tailings dam disaster will have on efforts to restart BHP and Vale's jointly owned Samarco mine, shut since November 2015 after a dam collapse killed 19 people.
All so-called upstream dams need to be decommissioned or removed by August, 2021, according to a resolution the National Mining Agency published on Monday.
The company is working with several wearable technology providers so companies can monitor biometric and environmental data to identify whether employees are experiencing dangers or risk, beyond a equipment failure.