ELBM · Electra Battery Materials Corporation

This 6-K filing discloses a significant construction milestone for Electra’s cobalt sulfate refinery—the award of a C$25 million solvent extraction (SX) building construction package to WB Melback Corporation. The scope explicitly covers concrete and civil works, structural steel erection, piping installation, and electrical/instrumentation integration for the SX circuit, confirming advancement beyond planning into physical execution. The issuance of a Limited Notice to Proceed—while a definitive agreement is finalized—demonstrates disciplined project governance and enables time-critical path activities such as engineering verification, QA/HSE setup, and enabling civil work. Management commentary from VP Projects & Engineering Paolo Toscano affirms alignment with both budget and schedule, reinforcing credibility in near-term execution. Supporting evidence includes on-site mobilization of construction management and inspection teams, completion of key concrete structures (pregnant leach solution filter, neutralization clarifier), delivery and staging of long-lead equipment, and active piping fabrication and process equipment installation across multiple refinery systems. Given that the refinery represents North America’s only cobalt sulfate refining facility—and a cornerstone of Electra’s strategy to onshore critical battery materials supply—the timely progression through construction toward commissioning next year carries direct implications for de-risking capital deployment, validating engineering design, and positioning the Company for future revenue generation from tolling or commercial production. No financial results, debt issuances, executive changes, or regulatory disclosures are included; the event is purely operational and construction-focused.