Investor Presentaiton

ESG Reporting ■ CRL publishes an extensive biennial Corporate Citizenship Report, and an annual ESG Data Table against 3 global frameworks: GRI SASB Rater/Ranker Current score CDP Climate A- CDP - Supplier A- Engagement CSA 33/100 Previous Score A- A 27/100 Performance Top 10% of all companies Top 10% of all companies Mid-69th percentile 66/100 silver rating 54/100 bronze rating Top 90th percentile C High-Top 20% Governance: 7 (low) Environment: 2 (high) Social: 1 (high) - N/A updated monthly N/A 662/850 N/A - updated monthly High (considered low risk) - TCFD (new in 2023) ■ The next Corporate Citizenship Report is scheduled to be published in spring 2024 ■ Recent reports and an ESG Library of historical metrics are available on our website at www.criver.com/Corporate Citizenship EcoVadis ISS: Company Score ISS: Quality Score ISS: Cyber Risk Score Alert MSCI C BBB 4.6/10 Sustainalytics 18.9 (low ESG risk) Charles River Laboratories (CRL) BB 20.4 (medium ESG risk) (Oct. 2020) Mid-to-low 39th percentile (out of 100) Mid-to-top = 21st (1 lowest risk) 10

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