CECO Environmental Corp operates in the environmental technology sector, providing solutions for air pollution control, fluid handling, and energy efficiency. All financial screening ratios meet or exceed compliance thresholds across AAOIFI, MSCI, and S&P standards, with no non-permissible business activities identified. However, the company is not included in any major Shariah-compliant indices, leading to an overall non-compliant classification. Purification is required for the minor interest income portion. The report highlights strong ESG alignment and low risk profile.