Diploma Results Presentation Deck

4 Diploma PLC Half Year 2023 Results Strong first half, upgrading full year guidance Another strong performance, building on our long term compounding track record • Revenue diversification driving continued strong volume-led organic revenue growth in H1 • Focused portfolio development: eight high quality acquisitions, one disposal Continued scaling of our value-add model underpinning margin improvement Upgrade to full year guidance underscores our resilience Strong balance sheet and encouraging acquisition pipeline Delivering Value Responsibly (DVR): net zero targets submitted to SBTi for validation ● ● ● ● Continued quality compounding DIPLOMA PLC

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