Based on preliminary financial information, Eos currently expects:

• Revenue of $68 million to $69 million, representing the highest quarterly revenue in its history, driven by a more than three-fold increase in shipments compared to the prior-year period. Revenue recognized during the first half of 2026 surpassed the Company's total revenue for 2025.
• Gross margin loss between 69% and 73%, reflecting continued progress in manufacturing scale and operational execution. The second quarter marked the Company's transition to operating two commercial production lines across two manufacturing facilities. Battery Line 2 commenced commercial production in mid-June and has delivered strong initial results, achieving higher yields and faster cycle time than Battery Line 1 as it operates in the early stages of production ramp. While start-up costs and lower initial production volumes are expected to create near-term cost absorption pressure, as is typical during the early stages of a production ramp-up, the expansion significantly increases capacity and establishes the foundation for stronger unit economics and expected margin improvement over time.
• Backlog of approximately $807 million as of June 30, 2026, representing a Company record and an increase of approximately 25% from the prior quarter. Growth in backlog reflects strong commercial momentum, with new orders booked exceeding shipments recognized during the quarter and continued conversion of the Company’s commercial pipeline into contracted business, further enhancing expected revenue visibility.
• Total Cash, including restricted cash, of approximately $364 million as of June 30, 2026, with approximately $78 million of customer collections received during the quarter, exceeding quarterly revenue.