Stock-based long-term performance incentives represent the largest component of executive pay to encourage sustained performance aligned with shareholder interests. Safety, health and sustainability metrics represented around performance bonus payout (based on 2020 performance) and between 68 percent and 80 percent of the regional and site performance bonus payouts, with the remaining percentage covering operating measures such as efficiencies/cost controls, free cash flow generation and exploration objectives (the percentage varies according to whether an employee is at the site, region or corporate level).