Eos Energy Results Presentation Deck

Highlights 6 Balancing Priorities while Meeting Key Customer Commitments Profitability roadmap balances customer deliveries, workforce development, capacity expansion, and capital requirements Original Expectations Financing Z3 Launch Personnel Q1 2023 Manufacturability Supply Chain Development Original 2023 expectation Q2 2023 Q3 2023 Challenges Workforce Development Q4 2023 Manual operations primary defect driver Equipment availability and reliability Date of occurrence Supplier critical part qualification Developing multiple sources of supply Impact + Customer order timing + Working capital and capacity expansion + Customer project readiness + Product cost-out timing Improvements ✓ Detailed training plan - safety, quality, and culture Experienced operators on critical operations ✓ Integrated maintenance planning & routines ✓ Added supply quality and engineering resources ✓ Increased QC inspections Focus Area Working DOE loan closing requirements Comprehensive financing plan Reduce semi-automated production to deliver critical customer commitments Production plan alignment with cost-out program to reduce working capital Deliver state-of-the-art manufacturing line Focus Area Upskill workforce to meet new manufacturing line requirements Implementing Lean Manufacturing Roadmap Adding resources for shift leadership & 24-hour maintenance Weekly critical part reviews with suppliers Further supplier development & multiple sources of supply eos

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