ESG MATERIALITY ASSESSMENT, OPPORTUNITIES & RISKS Our business and our industry have each
evolved over the years and continue to evolve in response to the world’s global energy needs, climate
change impacts and climate-related risks. As a company, we understand sustainability considerations
are critical to our longterm success. We’ve engaged internal and external stakeholders, industry
associations, and we continually review mandatory and voluntary regulations and standards to assess
the materiality of sustainability considerations relevant and important to our business. We approach our
sustainability practices first through identification, then prioritization, and ultimately continually
improving performance. Ensign has identified the following sustainability issues as material to our
business based on the likelihood of occurrence, the risk to our business, and the opportunity for
performance. The sustainability issues and practices reviewed in this report are not an exhaustive or
static list but highlight key areas of current focus for Ensign.