Our Performance

Performance Table

Below are the metrics that describe our ESG performance for the last three years. The reference column indicates the alignment of
that specific metric with the Sustainability Accounting Standards Board (SASB) indicators. In instances where there is no SASB metric
suggested, we include the corresponding reference to the metric suggested by the GRI standards. Note that in some cases a single
metric aligns with both the SASB and GRI standards but only the SASB reference is noted.

All references that start with EM-MM refer to SASB metrics for the Extractives & Minerals Processing Sector – Metals & Mining.

We welcome feedback at sustainabledevelopment@cameco.com