A great deal has changed since Ontario Mining Association's founding nearly 100 years ago, but our mission remains consistent: to improve the competitiveness of Ontario's mining industry, while promoting safety, environmental stewardship and sustainability.

Over the years, OMA has maintained its core commitment to these ideals, while embracing change in step with the evolution of society's expectations and our industry's capacity to meet them.

Venn Diagram on Responsible mining - health and safety, economic development and community engagement and environmental stewardship