Electra awards C$12.4M refinery construction package

Electra Battery Materials Corporation reported that it has awarded a structural, mechanical and piping construction package valued at approximately C$12.4 million to Ontario-based Kilmarnock Enterprises for its cobalt sulfate refinery north of Toronto.

Rhea-AI Filing Summary

Electra Battery Materials Corporation reported that it has awarded a structural, mechanical and piping construction package valued at approximately C$12.4 million to Ontario-based Kilmarnock Enterprises for its cobalt sulfate refinery north of Toronto. With this award, Electra has now committed about C$46 million to refinery-related construction packages.

The SMP contract covers refinery retrofit, installation and commissioning readiness, including concrete and civil work, structural steel, process equipment installation, piping fabrication and commissioning support. Electra has issued a Limited Notice to Proceed while a definitive construction agreement is finalized, and states the refinery project remains in line with the budget and schedule announced in February.

Insights

Battery materials infrastructure analyst

Electra advances its cobalt refinery build with another mid-sized construction award.

Electra Battery Materials is moving its cobalt sulfate refinery closer to completion by awarding a C$12.4 million structural, mechanical and piping package, bringing total refinery-related construction packages to about C$46 million. This reflects steady project execution rather than a new funding event.

The company notes that most major construction packages are now awarded and reiterates that the project remains on the budget and schedule outlined in February. A Limited Notice to Proceed allows early work while a definitive construction agreement is finalized, a common approach to keep timelines on track.

For investors, this update mainly confirms ongoing progress on North America’s only planned cobalt sulfate refinery and the continued use of a multi-package contracting strategy aimed at managing sequencing, integration and cost control. The filing does not quantify overall project size or economics in this excerpt.

Key Figures

SMP construction package value: C$12.4 million Total refinery-related construction packages: C$46 million

2 metrics

SMP construction package value C$12.4 million Structural, mechanical and piping contract for cobalt refinery

Total refinery-related construction packages C$46 million Cumulative value of awarded refinery construction packages

Key Terms

structural, mechanical and piping (SMP), cobalt sulfate refinery, Limited Notice to Proceed, black mass recycling, +1 more

5 terms

structural, mechanical and piping (SMP) technical

"announced the award of a structural, mechanical and piping (SMP) construction package"

cobalt sulfate refinery technical

"construction activities at Electra’s cobalt sulfate refinery complex north of Toronto"

A cobalt sulfate refinery is an industrial plant that converts raw cobalt-bearing ore or intermediates into cobalt sulfate, a purified chemical used mainly in rechargeable battery cathodes and other industrial applications. For investors, the facility is a key link in the supply chain: its output and operating costs influence availability, price stability and profit margins for companies that make batteries or rely on cobalt, much like a flour mill affects the cost and supply of baked goods.

Limited Notice to Proceed regulatory

"Electra has issued a Limited Notice to Proceed to authorize early execution activities"

A limited notice to proceed is a short, partial green light from a client that lets a contractor begin specific early work—such as site preparation, ordering long‑lead materials, or hiring crews—before the full contract is signed. For investors it signals that a project is moving from planning toward execution, which can accelerate revenue timing but also exposes the company to early costs and schedule risk if the full contract terms change; think of it as starting the foundation before the final building permit paperwork is complete.

black mass recycling technical

"Electra is also advancing black mass recycling opportunities to recover critical materials"

Black mass recycling is the process of recovering the dark, powdery mix of shredded battery materials—mainly lithium, nickel, cobalt and other metals—produced when used lithium‑ion batteries are broken down. For investors, it matters because turning that “battery dust” back into usable metals reduces reliance on raw mining, cuts costs and supports supply chains for electric vehicles and electronics, similar to how melting down scrap metal feeds a factory without buying new ore.

forward-looking statements regulatory

"This news release may contain forward-looking statements and forward-looking information"

Forward-looking statements are predictions or plans that companies share about what they expect to happen in the future, like estimating sales or profits. They matter because they help investors understand a company's outlook, but since they are based on guesses and assumptions, they can sometimes be wrong.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What contract did Electra Battery Materials (ELBM) announce in its June 2026 6-K?

Electra Battery Materials announced awarding a structural, mechanical and piping construction package valued at approximately C$12.4 million to Kilmarnock Enterprises. This package supports retrofit, installation and commissioning readiness at its cobalt sulfate refinery complex north of Toronto as part of ongoing construction activities.

How much construction work has Electra Battery Materials (ELBM) awarded for its refinery so far?

Electra reports that, including the new C$12.4 million SMP package, it has awarded approximately C$46 million in refinery-related construction packages. These contracts cover major scopes such as structural steel, process equipment installation, piping, civil works and commissioning support across multiple process areas.

Who is Kilmarnock Enterprises and what will it do for Electra Battery Materials (ELBM)?

Kilmarnock Enterprises is an Ontario-based industrial contractor with experience in structural, mechanical and piping construction. For Electra, it will execute an SMP package including concrete and civil work, structural steel installation, process equipment installation, piping fabrication and installation, and commissioning support at the cobalt sulfate refinery.

Is Electra Battery Materials’ cobalt refinery project still on budget and schedule?

Electra states that its cobalt sulfate refinery project remains in line with the budget and schedule announced in February. The company highlights that most major construction packages have now been awarded and that activity is ramping up across the site with safety emphasized in daily operations.

What is Electra Battery Materials’ strategic focus described in this 6-K filing?

Electra’s primary focus is constructing North America’s only cobalt sulfate refinery as part of a phased strategy to onshore critical minerals refining. It also holds Idaho Cobalt Belt properties, is advancing black mass recycling, and continues evaluating additional opportunities in nickel refining and downstream battery materials.

What is a Limited Notice to Proceed in Electra Battery Materials’ refinery contract?

Electra has issued a Limited Notice to Proceed to Kilmarnock Enterprises, authorizing early execution activities before a full construction agreement is finalized. This allows initial work on the SMP scope to begin while commercial terms for the definitive construction contract are completed between the parties.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 06/04/2026 - 07:15 AM EDT Learn about SEC filing dates

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

Form 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of June 2026

Commission File Number: 001-41356

Electra Battery Materials Corporation
(Translation of registrant's name into English)

133 Richmond St W, Suite 602
Toronto, Ontario, M5H 2L3 Canada
(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.
Form 20-F [ X ]      Form 40-F [   ]

DOCUMENTS INCLUDED AS PART OF THIS REPORT

Exhibit Number		Description
99.1		Press Release dated June 4, 2026

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

		Electra Battery Materials Corporation
		(Registrant)
Date: June 4, 2026		/s/ Trent Mell
		Trent Mell
		Chief Executive Officer and Director

EXHIBIT 99.1

Electra Awards Structural, Mechanical & Piping Contract

TORONTO, June 04, 2026 (GLOBE NEWSWIRE) -- Electra Battery Materials Corporation (NASDAQ: ELBM; TSX-V: ELBM) (“Electra” or the “Company”) today announced the award of a structural, mechanical and piping (SMP) construction package valued at approximately C$12.4 million to Ontario-based Kilmarnock Enterprises as part of the ongoing construction activities at Electra’s cobalt sulfate refinery complex north of Toronto.

Kilmarnock Enterprises is an Ontario-based industrial contractor with extensive experience in structural, mechanical and piping construction across complex industrial and infrastructure projects. The North American refinery will support the development of a domestic supply chain for electric vehicle batteries and critical minerals.

With the Kilmarnock package, Electra has now awarded approximately C$46 million in refinery-related construction packages. The SMP package supports refinery retrofit, installation, and commissioning readiness activities across multiple process areas and includes concrete and civil work, structural steel installation, process equipment installation, piping fabrication and installation, and commissioning support activities. Electra has issued a Limited Notice to Proceed to authorize early execution activities while the parties finalize a definitive construction agreement.

“With most of the major construction packages now awarded, we are in the final stages of contracting for the remaining scopes required to complete the refinery,” said Trent Mell, CEO. “Our strategy of executing the project through multiple construction packages aligned to major process areas has allowed Electra to take a more active role in managing construction sequencing, contractor performance, project integration, and cost control. As activity ramps up across the refinery site, we are beginning to realize the benefits of this approach through improved coordination and execution across the project. The project remains in line with the budget and schedule announced in February, with safety embedded in every action, reflecting the dedication of the team we have assembled on this project.”

Images above: Construction progress at Electra’s refinery. Left: Contractors erecting the cobalt sulfate storage silo.
Right: Contractors installing structural steel for the solvent extraction plant internal pipe rack.

About Electra Battery Materials

Electra is a leader in advancing North America’s critical minerals supply chain for lithium-ion batteries. The Company’s primary focus is constructing North America’s only cobalt sulfate refinery, as part of a phased strategy to onshore critical minerals refining and reduce reliance on foreign supply chains. In addition to the Refinery, Electra holds a significant land package in Idaho’s Cobalt Belt, including its Iron Creek project and surrounding properties, positioning the Company as a potential cornerstone for North American cobalt and copper production.

Electra is also advancing black mass recycling opportunities to recover critical materials from end-of-life batteries, while continuing to evaluate growth opportunities in nickel refining and other downstream battery materials. For more information, please visit www.ElectraBMC.com.

Contact
Heather Smiles
Vice President, External Affairs & Corporate Development
Electra Battery Materials
info@ElectraBMC.com 
1.416.900.3891

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

Cautionary Note Regarding Forward-Looking Statements

This news release may contain forward-looking statements and forward-looking information (together, “forward-looking statements”) within the meaning of applicable securities laws. All statements, other than statements of historical facts, are forward-looking statements, including statements regarding the approved construction budget and its sufficiency; project milestones such as contract awards, site mobilization, commissioning, mechanical completion, commercial production and ramp-up; targeted throughput and production volumes; additional capital required for commissioning and working capital; engineering studies and incremental investments; availability of equipment, reagents, feedstock and other inputs; commercial arrangements; and the availability and timing of governmental or other financial support. Generally, forward-looking statements can be identified by the use of terminology such as “plans”, “expects', “estimates”, “intends”, “anticipates”, “believes” or variations of such words, or statements that certain actions, events or results “may”, “could”, “would”, “might”, “occur” or “be achieved” or similar expressions and are based on current assumptions and expectations. Forward-looking statements involve risks, uncertainties and other factors that could cause actual results, performance, and opportunities to differ materially from those implied by such forward-looking statements. Factors that could cause actual results to differ materially from these forward-looking statements are set forth in the management discussion and analysis and other disclosures of risk factors for Electra Battery Materials Corporation, at www.sedarplus.com and on EDGAR at www.sec.gov. Although Electra Battery Materials Corporation believes that the information and assumptions used in preparing the forward-looking statements are reasonable, undue reliance should not be placed on these statements, which only apply as of the date of this news release, and no assurance can be given that such events will occur in the disclosed times frames or at all. Except where required by applicable law, Electra Battery Materials Corporation disclaims any intention or obligation to update or revise any forward-looking statement, whether as a result of new information, future events or otherwise.

A photo accompanying this announcement is available at https://www.globenewswire.com/NewsRoom/AttachmentNg/a906bc1d-5d3f-4db8-bef3-19251bb32cd0

Filing Exhibits & Attachments

1 document

Press Releases

• EX-99.1 PRESS RELEASE 7.3 KB