Mr. William Crossland reports

THERMAL ENERGY INTERNATIONAL TO ANNOUNCE FISCAL 2027 FIRST QUARTER RESULTS ON OCTOBER 27, 2026

Thermal Energy International Inc. will release its fiscal 2027 first quarter financial results prior to the market open on Tuesday, Oct. 27, 2026.

Management will host an earnings conference call and webcast to review the financial results at 8:30 a.m. ET the same morning. A question-and-answer session will follow management's prepared remarks, at which time qualified equity analysts and institutional investors will be able to submit questions via the webcast. Other investors are invited to submit moderated questions related to the company's financial and operational performance in advance (prior to 8:15 a.m. ET on Oct. 27, 2026) by e-mail to investors@thermalenergy.com for consideration during the call.

Joining the webcast via Microsoft Teams

A live webcast of the earnings call with a slide presentation will be available. You may join the webcast via MS Teams on your computer, mobile app or room device. Please join the webcast approximately 15 minutes prior to the earnings call to ensure adequate time for registration and admittance to the webcast.

Dial-in instructions (audio only)

For anyone unable to join via MS Teams, there will also be a dial-in option to join the conference call by phone. To access the conference call via dial-in, please use the information below. Please dial-in approximately five to 10 minutes prior to the earnings call to help ensure admittance.

Calling from Canada:1-437-703-4481  

Phone conference ID:745 589 657 followed by the pound key  

Thermal Energy's financial statements and management's discussion and analysis will be filed on SEDAR+ following the release and will be available on the same day on Thermal Energy's website.

About Thermal Energy International Inc.

Thermal Energy International provides energy efficiency and emissions reduction solutions to Fortune 500 and other large multinational companies. The company saves its customers money by reducing their fuel use and cutting their carbon emissions. Thermal Energy's proprietary and proven solutions can recover up to 80 per cent of energy lost in typical boiler plant and steam system operations while delivering a high return on investment with a short, compelling payback.

Thermal Energy is a fully accredited professional engineering firm with engineering offices in Ottawa, Canada, Pittsburgh, U.S., as well as Bristol, U.K., with sales offices in Canada, the United Kingdom, the United States, Germany, Poland and Italy. By providing a unique mix of proprietary products together with process, energy and environmental engineering expertise, Thermal Energy can deliver unique, site-specific turnkey and custom engineered solutions with significant financial and environmental benefits for its customers.

Thermal Energy's common shares are traded on the TSX Venture Exchange under the symbol TMG, on the OTCQB under the symbol TMGEF and on the Frankfurt Open Market under the symbol EUW.