Fuel Tech, Inc. (FTEK) 8-K Filing Summary

• Event Date: November 4, 2025.
• Reported Event: Item 2.02 confirms the release of Fuel Tech’s financial results for the fiscal quarter ended September 30, 2025.
• Critical Note: This 8-K filing itself does not contain the specific financial data or operational metrics.
• Investors must consult Exhibit 99.1 (the furnished Press Release) for detailed financial performance and guidance.
• The filing was executed by Ellen T. Albrecht, VP, CFO, and Treasurer.
• Registration: Common Stock trades on NASDAQ under FTEK.