The Dow Jones Sustainability Indices ("DJSI") are considered among the most important global indicators of sustainability leadership, evaluating public companies on environmental, social and governance (ESG) factors relevant to their industry. The Dow Jones Sustainability North America Index represents the top 20% of the largest 600 North American companies in the S&P Global Broad Market Index (BMI) based on long-term economic, environmental and social criteria. The index is used as a reference by shareholders who consider sustainability when making investment decisions. Only the most sustainable companies in each industry are considered each year for index membership.