Investor Presentation January 2024

Investment Highlights Make Critical High- Spec Parts for Attractive End Markets New Top Leadership Team Enterprise Transformation Underway, Showing Results New Approach to Winning Future Business, Showing Results Reduce Debt and Deleverage, Showing Results +! • • • Leading manufacturer of high-precision metal products Decades of proprietary engineering know-how Products are know- how and applicable to multiple desirable end markets/applications - auto, medical, power New top team focused on results and accountability, new 2nd tier talent Led by new CEO Harold Bevis, who is experienced in these end markets and has executed multiple successful corporate transformations Just beginning transformation - sales wins, culling portfolio, profits, and cash flow Fixing unprofitable areas with opportunity to improve margins through cost optimization and price clearing initiatives Adding experts Leveraging current footprint and capabilities to drive organic growth and more wins Recently upsized efforts in medical, connectors and electrification New approach to mass balancing cashflows, immediate results Looking forward to refinancing with market metrics and more favorable terms than today's structure Future opportunities to add to portfolio, not now 2023 Preliminary Results Consistent with Prior Outlook NN Inc., Investor Presentation | January 2024 3

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