NORTHSTAR REPORTS FIRST QUARTER 2026 RESULTS; PROVIDES CAPITAL MARKETS UPDATE AND ANNOUNCES WEBCAST

/NOT FOR DISTRIBUTION TO UNITED STATES NEWSWIRE SERVICES OR FOR THE DISSEMINATION, DISTRIBUTION, RELEASE OR PUBLICATION, DIRECTLY OR INDIRECTLY, IN OR INTO THE UNITED STATES/ CALGARY, AB , June 1, 2026 /CNW/ - Northstar Clean Technologies Inc. (TSXV: ROOF ) (OTCQB: ROOOF ) (" Northstar " or the " Company ") is pleased to announce its financial and operating results for the three-month period ended March 31, 2026. Selected financial and operational information is set out below and should be read in conjunction with the Company's March 31, 2026 financial statements and the related management's discussion and analysis, which are available for review at www.sedarplus.ca or the Company's website at www.northstarcleantech.com . "The first quarter of 2026 was focused on strategic execution for Northstar, highlighted by the advancement of our U.S. expansion plans, including the selection of Baltimore, MD as our first U.S. location, and the strengthening of our financial position to support the ramp up of the Empower Calgary facility and future growth," said Aidan Mills, President & CEO of Northstar. "This month, ramp up activities at the Empower Calgary Facility have been ongoing and, we're successfully processing front-to-back without encountering the material transfer and water processing issues initially at 80tpd. We're getting very close to achieving 100tpd at the Calgary Facility, a key operational milestone aligned with ERA Milestone 4 and an important step toward commercial production." Q1 2026 Highlights January 2026: Northstar Selects Baltimore, Maryland as First United States Expansion Location January 2026: Northstar Raises $1.0 Million in Debenture Proceeds February 2026: Northstar Extends Maturing Convertible Debentures March 2026: Northstar Announces US$10 Million Non-Binding Term Sheet March 2026: Northstar Closes US$9 Million First Tranche of US$10 Million