COPP aims to replicate an index comprised of 30 to 50 constituents with a significant portion of their revenue derived from copper mining, exploration, development, and production activities. Eligible securities must meet specific criteria, including minimum market cap and liquidity threshold. Companies undergo a selection process involving industry publications, research, and engagements with company management. Securities are market-cap-weighted, with some adjustments for portfolio diversification. The index includes securities from domestic and international issuers, covering emerging and frontier markets, with notable representation from Canadian, Chilean, and Australian issuers. Reconstitution and rebalancing occur semi-annually, with deletions possible at any time due to corporate actions. COPP may also invest in publicly traded closed-ended trusts within the index's purview.