The top occupational disease risks in Ontario mining, based on results from the Occupational Disease Surveillance System (ODSS) and the potential exposures will be reviewed. Understanding and addressing occupational disease risks is crucial in safeguarding the health of workers in the mining. In October 2023, the government of Ontario announced the creation of Canada’s first-ever Occupational Exposure Registry, an exposure data system to track harmful exposure levels, help diagnose workplace diseases faster, improve worker compensation, and reduce costs to the healthcare system. The Occupational Cancer Research Centre is working with the Ministry of Labour, Immigration, Training and Skills Development to establish this new exposure data system for Ontario. By implementing health and safety measures, conducting regular training, and promoting a culture of awareness, we can create safer workplaces for all employees.