Diploma Results Presentation Deck

15 Diploma PLC Half Year 2023 Results Increasing full year guidance CURRENT TRADING Positive start to H2 Resilient, diversified business Confident in another strong FY performance UPGRADED FY 2023 GUIDANCE Double digit revenue growth: Organic growth: c.7% Acquisitions: c.7% ● ● ● Operating margin at top of guided range, c.19% Free cash flow conversion of c.90% Year-end leverage < 0.4x before further acquisitions Continued strong growth + increasing resilience = FY upgrade DIPLOMA PLC

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