Northstar Announces Limestone As Fourth Product Line, Supported by New Patent on Recovery Process

Northstar Announces Limestone As Fourth Product Line, Supported by New Patent on Recovery Process

Northstar Clean Technologies Inc. (TSXV: ROOF,OTC:ROOOF) (OTCQB: ROOOF) (" Northstar " or the " Company ") is pleased to announce it successfully separated and recovered limestone from asphalt shingles, adding a fourth product line for the Company. Northstar has also been issued a new patent (the " Patent ") by the United States Patent and Trademark Office (" USPTO ") for this limestone recovery portion of the Company's proprietary asphalt shingle reprocessing technology. The Patent is expected to remain in force until 2045.

Limestone is added to improve durability and longevity of shingles. The limestone, which is removed in Northstar's proprietary process to deliver its superior quality asphalt, now establishes a fourth product line for the Company, adding to the existing product lines of liquid or pelletized asphalt, aggregate and fibre/fibreglass.

"By extracting limestone directly from asphalt shingles, we've been able to establish both a fourth product line for the Company and most importantly, to deliver a final asphalt product with high-quality characteristics," commented Aidan Mills , Northstar President & CEO. "Additionally, this patent adds further protection to Northstar's intellectual property portfolio while strengthening our first-mover advantage. We believe the high quality of our asphalt will continue to provide significant differentiation for Northstar in the global marketplace."

Northstar received its initial U.S. patent in November, 2022 and has successfully obtained patents in the United States and Canada . The Company continues to pursue further patent protection for its proprietary asphalt shingle reprocessing technology in the United States , Canada and other international jurisdictions.

About Northstar

Northstar is a Canadian waste to value technology company focused on the sustainable recovery and reprocessing of asphalt shingles. Northstar developed and owns a proprietary design process for taking discarded asphalt shingles, otherwise destined for already over-crowded landfills, and extracts the liquid asphalt for use in new hot mix asphalt shingle manufacturing and asphalt flat roof systems while also extracting aggregate and fiber for use in construction products and other industrial applications. Focused on the circular economy, Northstar plans to reprocess used or defective asphalt shingle waste back into its three primary components for reuse/resale with its first commercial scale up facility in Calgary, Alberta . As an emerging innovator in sustainable processing, Northstar's mission aims at leading the recovery and reprocessing of asphalt shingles in North America that would otherwise be sent to landfill addressing numerous stakeholder objectives.

U.S. investors can find current financial disclosure and Real-Time Level 2 quotes for the Company on https://www.otcmarkets.com/ .

For further information about Northstar, please visit www.northstarcleantech.com .

On Behalf of the Board of Directors,
Aidan Mills
President & CEO, Director

Cautionary Statement on Forward-Looking Information

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release. The TSX Venture Exchange has neither approved nor disapproved the contents of this press release.

This press release may contain forward‐looking information within the meaning of applicable securities legislation, which forward‐looking information reflects the Company's current expectations regarding future events. Forward-looking statements are often identified by the words "may", "would", "could", "should", "will", "intend", "plan", "anticipate", "believe", "estimate", "expect", "aim" or similar expressions. Forward-looking statements in this press release include statements concerning: (i) Northstar's plans to reprocess used shingles into their component parts in the inaugural commercial facility in Calgary , (ii) the potential and implications of a fourth product line; (iii) Northstar's product line having high-quality characteristics; (iv) Northstar's view that is has a first mover advantage; (v) Northstar's view that its product will provide a differentiation advantage in the global marketplace; (vi) Northstar's plans to file patents in North America and internationally; and (vii) Northstar's ability to become a leader in the recovery and reprocessing of asphalt shingles in North America . Such statements are subject to risks and uncertainties that may cause actual results, performance or developments to differ materially from those contained in the statements, including: risks related to factors beyond the control of the Company; inability of the Company to execute on its business plans; the Company may require additional financing which may not be obtainable or on favourable terms; economic uncertainty; and the risks and uncertainties which are more fully described under the heading "Risk Factors" in the Company's annual and quarterly management's discussion and analysis and other filings with the Canadian securities regulatory authorities under the Company's profile on SEDAR+. No assurance can be given that any of the events anticipated by the forward-looking statements will occur or, if they do occur, what benefits the Company will obtain from them. The Company does not undertake any obligation to update such forward‐looking information whether because of new information, future events or otherwise, except as expressly required by applicable law.

Should one or more of these risks or uncertainties materialize, or should assumptions underlying the forward-looking statements prove incorrect, actual results may vary materially from those described herein as intended, planned, anticipated, believed, estimated, expected or aimed. Although the Company has attempted to identify important risks, uncertainties and factors which could cause actual results to differ materially, there may be others that cause results not to be as anticipated, estimated or intended and such changes could be material. The Company does not intend, and do not assume any obligation, to update the forward-looking statements except as otherwise required by applicable law.

Cision View original content to download multimedia: https://www.prnewswire.com/news-releases/northstar-announces-limestone-as-fourth-product-line-supported-by-new-patent-on-recovery-process-302565152.html

SOURCE Northstar Clean Technologies Inc.

Cision View original content to download multimedia: http://www.newswire.ca/en/releases/archive/September2025/24/c3723.html

News Provided by Canada Newswire via QuoteMedia

ROOF:CA
The Conversation (0)
northstar clean technologies

Northstar Clean Technologies

An ESG Investment Opportunity, Single-Use Asphalt Shingles Recovery Solution

Northstar Announces Mailing of Management Information Circular, Date and Details of Annual General & Special Meeting and Announces Details of Long-term Incentive Plan

Northstar Announces Mailing of Management Information Circular, Date and Details of Annual General & Special Meeting and Announces Details of Long-term Incentive Plan

Northstar Clean Technologies Inc. (TSXV: ROOF) (OTCQB: ROOOF) ("Northstar" or the "Company") is pleased to announce that it has scheduled its Annual General and Special Meeting of Shareholders (the "Meeting") for Thursday, July 28, 2022 at 11:00 am PST ( 2:00 pm EST ). The Meeting will be held... Keep Reading...
Northstar Reports First Quarter 2022 Financial Results And Announces Details Of Virtual Investor Webcast

Northstar Reports First Quarter 2022 Financial Results And Announces Details Of Virtual Investor Webcast

Highlights $3.9 million in cash as of March 31, 2022 Working capital surplus of $3.7 million as of March 31, 2022 compared to a working capital surplus of $5.5 million as of December 31, 2021 Completed Calgary FEED study results: total capital cost estimate of $11.75 million which includes a... Keep Reading...
NORTHSTAR'S CALGARY SCALE UP ASPHALT SHINGLE REPROCESSING FACILITY FOUND TO REDUCE CARBON DIOXIDE EQUIVALENT  EMISSIONS BY 60%

NORTHSTAR'S CALGARY SCALE UP ASPHALT SHINGLE REPROCESSING FACILITY FOUND TO REDUCE CARBON DIOXIDE EQUIVALENT EMISSIONS BY 60%

Independent life cycle assessment of Northstar's Calgary scale up facility confirms carbon dioxide equivalent emissions benefits vs. landfilling asphalt shingles and use of virgin materials Northstar Clean Technologies Inc. (TSXV: ROOF) (OTCQB: ROOOF) ("Northstar" or the "Company") is pleased to... Keep Reading...
Northstar Announces 2021 Financial Results and Details of Virtual Investor Webcast

Northstar Announces 2021 Financial Results and Details of Virtual Investor Webcast

Financial Highlights $6.0 million in cash as at December 31, 2021 Total assets increased by $7.5 million while total liabilities increased by $0.6 million compared to December 31, 2020 Working capital surplus of $5.5 million compared to a working capital deficit of $0.06 million compared to... Keep Reading...
Northstar to Present at 2022 Asphalt Roofing Manufacturers Association Spring Committee & Board Meeting Series in Kansas City

Northstar to Present at 2022 Asphalt Roofing Manufacturers Association Spring Committee & Board Meeting Series in Kansas City

Northstar Clean Technologies Inc. (TSXV: ROOF), (OTCQB: ROOOF) ("Northstar" or the "Company") has announced that it will be presenting at the 2022 Asphalt Roofing Manufacturers Association ("ARMA") Spring Committee & Board Meeting Series. The Company's presentation "Repurposing Asphalt Roofing... Keep Reading...
CHARBONE annonce une alliance strategique avec un important producteur de gaz industriel americain

CHARBONE annonce une alliance strategique avec un important producteur de gaz industriel americain

(TheNewswire) Brossard, Quebec TheNewswire - le 20 octobre 2025 CORPORATION CHARBONE (TSXV: CH,OTC:CHHYF; OTCQB: CHHYF; FSE: K47) (« CHARBONE » ou la « Société »), un producteur et distributeur nord-américain spécialisé dans l'hydrogène propre à Ultra Haute Pureté (« UHP ») et les gaz... Keep Reading...
CHARBONE Announces a Strategic Alliance with a Leading U.S. Industrial Gas Producer

CHARBONE Announces a Strategic Alliance with a Leading U.S. Industrial Gas Producer

(TheNewswire) Brossard, Quebec, October 20, 2025 TheNewswire - CHARBONE CORPORATION (TSXV: CH,OTC:CHHYF; OTCQB: CHHYF; FSE: K47) (" CHARBONE " or the " Company "), a North American producer and distributor specializing in clean Ultra High Purity (" UHP ") hydrogen and strategic industrial gases... Keep Reading...
CHARBONE annonce un financement de reglements de dettes par emission d'unites totalisant 0,5M$

CHARBONE annonce un financement de reglements de dettes par emission d'unites totalisant 0,5M$

(TheNewswire) Brossard, Quebec, le 17 octobre 2025 TheNewswire - CORPORATION CHARBONE (TSXV: CH,OTC:CHHYF; OTCQB: CHHYF; FSE: K47) (« CHARBONE » ou la « Société »), un producteur et distributeur nord-américain spécialisé dans l'hydrogène propre à Ultra Haute Pureté (« UHP ») et les gaz... Keep Reading...
CHARBONE Announces Closing of Units for Debt Financing Totaling $0.5M

CHARBONE Announces Closing of Units for Debt Financing Totaling $0.5M

(TheNewswire) Brossard, Quebec, October 17, 2025 TheNewswire - CHARBONE CORPORATION (TSXV: CH,OTC:CHHYF; OTCQB: CHHYF; FSE: K47) (" CHARBONE " or the " Company "), a North American producer and distributor specializing in clean Ultra High Purity (" UHP ") hydrogen and strategic industrial gases,... Keep Reading...
Convertible Note and Placement

Convertible Note and Placement

Carbonxt Group (CG1:AU) has announced Convertible Note and PlacementDownload the PDF here. Keep Reading...
Norway Innovation Centre for Robotics and Prototype Tank

Norway Innovation Centre for Robotics and Prototype Tank

Provaris Energy (PV1:AU) has announced Norway Innovation Centre for Robotics and Prototype TankDownload the PDF here. Keep Reading...

Latest Press Releases

Related News