Mr. David Kratochvil reports

BQE WATER'S SELEN-IX(TM) PROCESS TO BE KEY COMPONENT IN REHABILITATING FLOW FROM HISTORIC TAILINGS FACILITY AT THE WHARF MINE

BQE Water Inc. has successfully completed the on-site pilot demonstration of its patented Selen-IX process at the Coeur Wharf mine in the northern Black Hills of South Dakota, United States. The demonstration was the first critical step in the process of implementing selenium treatment that meets permit conditions associated with the mine expansion. The project is now fast tracked for full-scale implementation in 2024.

Selen-IX was selected as the best available technology (BAT) for this project over biological selenium reduction systems due to several factors, including: ability to avoid reliance on dilution by meeting the in-stream limit directly at the end of pipe; performance unaffected by cold water temperatures; ability to operate in intermittent mode; ability to handle large and rapid fluctuations in feed flow; and minimization of residue management costs.

Although there are multiple successful large-scale Selen-IX plants currently in operation, Coeur requested the pilot demonstration to verify the process performance on the Wharf-mine-influenced water prior to initiating engineering design to minimize implementation risks. The pilot phase of the project involved a rapid deployment, start-up and continuous operation of BQE's mobile Selen-IX unit at site. The campaign was accompanied by a rigorous sampling program to monitor process performance under variable feed conditions, and included characterization of the selenium solids to inform residue management and disposal in the full scale. Unlike biological systems that do not allow rapid demonstration due to the lengthy process inoculation and acclimation prior to reaching a steady-state operation, the Selen-IX process starts to produce on-spec effluent at the design flow immediately and reaches a steady state within days.

David Kratochvil, president and chief executive officer of BQE Water, commented: "I am very proud of our technical team for delivering yet another flawless pilot project execution, in close collaboration with the client's operations personnel, to meet and exceed all project objectives. This project also demonstrates the unique value of the Selen-IX process for clients with short timelines to reach environmental compliance, by treating water at design capacity and producing target effluent water quality immediately after start-up. This feature is critical for Wharf as it fast tracks the full-scale treatment implementation in accordance with the mine permit, and BQE is committed to delivering technical excellence through all stages of the project and have a fifth Selen-IX plant in operation as soon as possible."

About BQE Water Inc.

BQE Water is a service provider specializing in water treatment and management for metals mining, smelting and refining. The company is helping to transform the way the industry thinks about water in the context of natural resource projects by offering services and expertise that enable more sustainable water management practices and improved overall project performance at reduced risks. BQE Water invests in innovation and has developed unique intellectual property through the commercialization of several new technologies at mine sites around the world for organizations, including Glencore, Jiangxi Copper, Freeport-McMoRan and the U.S. Environmental Protection Agency (EPA). BQE Water is headquartered in Vancouver, Canada.

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