Mr. Alex Wylie reports

LIBERTYSTREAM ANNOUNCES LITHIUM CARBONATE OFFTAKE MILESTONE WITH U.S. INDUSTRIAL CUSTOMER AND PROVIDES OPERATIONS UPDATE

Libertystream Infrastructure Partners Inc. has executed a term sheet containing material terms for a long-term lithium carbonate offtake agreement with a leading American industrial customer. The parties expect to finalize and enter into a definitive arrangement within 30 days of this announcement.

The offtake agreement will establish a multiyear supply relationship for U.S.-produced lithium carbonate from Facility 1, Libertystream's first planned commercial lithium carbonate facility located at Select Water Solutions' site in Howard county, Texas. Under the initial delivery schedule, Libertystream will supply 600 tonnes per annum beginning in 2027, delivered in quarterly shipments of 150 tonnes. Pricing has been set for the first two years of the agreement.

This milestone represents a significant advancement in Libertystream's transition from technology validation to commercial execution. It follows years of field operations, extraction and refining validation, lithium carbonate production, customer sampling, third party qualification and initial purchase-order activity -- now culminating in scheduled customer deliveries from Facility 1.

"This is the plan coming together," said Alex Wylie, president and chief executive officer of Libertystream. "Our team has spent years doing the hard work required to move from field validation to commercial supply -- operating in real-world conditions, producing lithium carbonate, moving product through customer channels and building the partnerships needed to scale. This next step represents a significant advancement in establishing a fully domestic lithium carbonate supply chain for U.S. lithium carbonate customers."

Operations update

Based on current field operations and the company's planned commercial configuration, Libertystream estimates that a 1,000-tonne-per-annum facility can achieve all-in operating costs of approximately $6,200 (U.S.) per tonne of lithium carbonate at steady-state commercial scale. This estimate includes royalties payable to Select, as previously disclosed in the company's press release dated Feb. 9, 2026. Under these assumptions, management expects each 1,000-tonne-per-annum facility to generate stand-alone positive operating cash flow, subject to realized lithium carbonate pricing, operating performance, ramp-up timing, financing costs and other factors.

Libertystream has delivered lithium carbonate samples to multiple groups representing an anticipated demand pipeline in excess of 10,000 tonnes per annum through 2029 from America.

Facility 1 is being developed as the anchor installation under Libertystream's previously announced agreement with Select Water Solutions. The Howard county facility is expected to integrate Libertystream's direct lithium extraction and refining platform with existing oil-field water infrastructure to support domestic lithium carbonate production from U.S. oil-field brine.

To support a smooth scale-up of Facility 1 and to ensure product delivered to the offtake partner meets all lithium carbonate technical and quality control requirements, Libertystream expects to enter into a consulting agreement with the offtake partner, or an affiliate thereof, to provide advisory services. In connection with this agreement, Libertystream will issue restricted share units to the offtake partner, or its affiliate (to be formalized within 30 days of this announcement), under the company's amended and restated omnibus security-based incentive plan.

About Libertystream Infrastructure Partners Inc.

Libertystream is a lithium development and technology company aiming to be one of North America's first commercial producers of lithium carbonate from oil-field brine. The company's strategy is to generate value for shareholders by leveraging management's hydrocarbon experience to deploy Libertystream's proprietary DLE (direct leach extraction) technology directly into existing oil and gas infrastructure, thereby reducing capital costs, lowering risks and supporting the world's clean energy transition. Libertystream is committed to operating efficiently and with transparency across all areas of the business staying sharply focused on creating long-term, sustainable shareholder value.

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