Bunker Hill Begins Construction of Processing Plant and Starts Resource Expansion Drill Program

TORONTO, May 21, 2024 (GLOBE NEWSWIRE) -- Bunker Hill Mining Corp. (“Bunker Hill” or the “Company”) (TSXV: BNKR, OTCQB: BHLL) is pleased to provide an update on its Bunker Hill Mine located in Kellogg, Idaho. A call with the management is scheduled to be held on Tuesday, May 21^st, 2024 at 8 a.m. (Pacific time) to provide an update and answer questions. Additional details regarding the call are available here:

https://events.6ix.com/preview/our-strategic-expansion-drilling-progra ...

“The start of our processing plant construction represents a vital and exciting milestone in our journey to restart the Bunker Hill Mine.” said Sam Ash, CEO, “We are on track for the planned start of both mining and mill commissioning by the end of this year, with the goal of ramping up to full production through Q1 2025”.

CONSTRUCTION STARTED OF THE CONCRETE FOUNDATIONS FOR THE PROCESSING PLANT

On April 30, 2024, the Company received its critical Pre-Permit to Construct from the Idaho Department of Environmental Quality (IDEQ), allowing the Company to start construction of its processing, and associated tailings management and mining facilities. This essential permission was granted following a detailed review of the Company’s Air Emissions Model and all its associated controls.

The Company is on track to start technical commissioning of the plant during Q4 2024. This will be concurrent with the planned start of mining and the building up of stockpiles; with the ramp up to full production through the first quarter of 2025.

OPTIMIZED TAILINGS FILTRATION PLANT

After completing a detailed review of the Bunker Hill restart plant, the Company elected to optimize the Tailings Filtration Plant design to ensure both the highest possible standards of long-term environmental management and the ability to ramp up operations from 1800-2500 tpd over time.

This final design favored the more effective, but more expensive, pressure filtration system over the disk filter method considered in the Company’s preliminary feasibility study for the Bunker Hill Mine dated September 30, 2022 and reported in a news release dated October 18, 2022 that can be found here. The engineering for the new Filtration Plant has passed the 60% engineering milestone; with construction of the foundations intended to start in June 2024 following the setting of the deep piers.