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Bunker Hill Mining Corp.

NYSE:BHLL
US$2.38Close 7 Oct 2026 · delayed

Past year: ▲ 1623%(13.8c – 4.29 USD)

Market cap
A$159m
Shares on issue
47.2m
Story beats
36 since 2010
Last event
9 Mar 2026

History

A Nevada silver explorer funded by one lender became Bunker Hill Mining, bought an Idaho mine and spent years raising money to restart it, closing a C$33.75M raise in March 2026.

2010-2016: A Nevada silver explorer

The company began as Liberty Silver Corp. In April 2010 it agreed with AuEx Ventures to earn up to a 70% interest in the Trinity Silver project in Nevada, by spending $5 million on exploration over six years and completing a bankable feasibility study (a study showing a mine could be financed). In March 2011 it announced an independently verified mineral resource estimate for Trinity. In late 2011 it raised $3.25 million from Look Back Investments, and in December 2011 its shares were approved for listing on the Toronto Stock Exchange under the ticker LSL.

In July 2012 Liberty launched a share-exchange offer for Sennen Resources Ltd., offering 0.28 of a new Liberty share for each Sennen share. The records provided do not show how that offer ended. In October 2012 it closed the purchase of the Hi Ho Properties, the only acreage within the Trinity package it did not already control, for $250,000 cash, $1.86 million in stock and a 2% royalty.

Funding then came to depend on one lender, BG Capital Group. In November 2013 Liberty finalized a $1.21 million secured loan at 11% interest. In October 2014 BG converted about US$1.25 million of debt into roughly 100 million shares at US$0.0125 each, and the company took a new US$1.25 million credit facility. In February 2015 a 1-for-15 reverse split cut the share count from about 185.3 million to 12.4 million. In January 2017 BG converted its remaining US$1.4 million loan into shares, leaving it with roughly 62% of the company.

2017-2019: Pivot to the Bunker Hill Mine

In August 2017 Liberty left Nevada and leased the historic Bunker Hill zinc-lead-silver mine in Idaho from Placer Mining Corp, with an option to buy it for $45 million. Renamed Bunker Hill Mining Corp., it raised C$9.7 million in December 2017, its first major financing after the lease, led by Red Cloud Klondike Strike and Haywood Securities.

In March 2018 it settled decades of EPA Superfund liability at the mine. The company agreed to do mine-water remediation work and pay $20 million over about seven years on behalf of the prior owner, plus water-treatment costs, in return for the EPA's promise not to sue and the release of its lien. To fund these payments, Hummingbird Resources lent US$1.5 million in July 2018 as a convertible loan, which carried a board-seat right and a right of first refusal on future financings. A November 2018 raise at just C$0.075 a unit was a steep down-round. A 1-for-10 reverse split followed in May 2019. In October 2019 the buyout price was cut from $45 million to $11 million and the ongoing royalty was removed.

2020-2023: Money for a restart

Under new CEO Sam Ash, the company launched a brokered placement in July 2020 that demand pushed from C$10 million to C$15 million and then to about C$20.4 million, closing in August. Sprott Capital Partners and Cormark Securities led it, and it marked the first appearance of Sprott. In November 2020 the purchase price fell again, to $7.7 million. December 2020 drilling confirmed mineralization above the existing resource boundary. A September 2021 economic assessment showed project value up 42% to $143 million and an 11-year mine life.

The company completed the mine purchase on January 7, 2022, funded by an $8 million Sprott debenture that also covered a $2 million EPA payment, plus a $6 million Sprott convertible debenture for working capital. In March 2022 it agreed to buy the Pend Oreille processing plant from a Teck Resources subsidiary, and in October 2022 it filed a preliminary feasibility study. In 2023 it raised C$6.2 million in special warrants at C$0.12 and closed a $67 million Sprott package, a $46 million stream (a prepayment repaid in metal) plus a $21 million debt facility, taking Sprott's commitment to $96 million. Shares on issue rose from 143.1 million at the end of 2020 to 322.7 million at the end of 2023.

2024-2026: Cost blowout and recapitalization

Financing became harder. In August 2024 subsidiary Silver Valley Metals took a silver-denominated loan from Monetary Metals, with a first tranche of US$16.4 million (about 610,000 ounces of silver) at 15% interest. In December 2024 a strategic review found the restart budget had grown to $103 million, from $67 million and an original $56 million, pushing the restart back to at least mid-2025. Management said it would draw on its Sprott standby facility, seek $30 million more and look at a $150 million Export-Import Bank facility.

In 2025 Teck provided a $3.4 million demand note at 12%, raised to $4.4 million in May, while a planned equity raise was cut from a $20 million minimum to $10 million. In September 2025 the company announced and then closed a bought deal of about C$51.9 million, with Teck taking nearly all of the US$19.6 million tranche (223.8 million units) and becoming a major shareholder. On March 9, 2026 it closed a further C$33.75 million raise of 159.7 million units at C$0.18, with Ocean Partners Holdings exercising warrants. As of that date, the proceeds were meant to fund working capital for the ramp-up to commercial production and exploration.

Written from the 36 story beats below (2010 to 9 Mar 2026), which come from the company's own announcements and filings.

Beat by beat

The events that changed the company's story, in plain English, each written against everything known about the company at the time. The dot shows whether it was good, bad or neutral for shareholders.

shares on issue market cap (log scale)

202645.6m shares · US$7.7m market cap

  1. 9 Mar

    Bunker Hill closed a further C$33.75 million 'LIFE' financing (159.7 million units at C$0.18, a higher price than September's C$0.12/US$0.087 - a sign of continued investor confidence), with existing warrant-holder Ocean Partners Holdings agreeing to exercise warrants as part of the deal. Proceeds fund working capital for the mine's ramp-up to commercial production and exploration.

    capital raising announcement

    45.6m shUS$7.7m

2025927m shares · US$108m market cap

  1. 29 Sept

    Bunker Hill closed its bought deal for gross proceeds of about C$51.9 million (C$24.75 million CAD tranche including the full over-allotment, plus US$19.6 million USD tranche). Teck subscribed for 223.8 million units of the USD tranche, lifting its stake to about 32.6%, and a director and an executive also took part. Proceeds fund construction, start-up and ramp-up of the Bunker Hill Mine.

    capital raising announcement

    927m shUS$108m
  2. 5 Sept

    Bunker Hill announced a much larger C$45 million underwritten 'bought deal' private placement to fund construction of the Bunker Hill Mine through to commercial production, anchored by two cornerstone investors committing roughly US$19.6 million and US$5.0 million respectively - the capital infusion needed after the restart's cost overruns and financing strain through 2024-2025.

    capital raising announcement

    927m shUS$108m
  3. 27 May

    Bunker Hill Mining increased the emergency demand note from Teck Resources from $3.4 million to $4.4 million, continuing to lean on short-term financing during the restart delay.

    debt financing

    359m shUS$38.6m
  4. 31 Mar

    With its restart budget blown out, Bunker Hill Mining leaned on Pend Oreille seller Teck Resources for emergency short-term funding (a $3.4 million demand note at 12% interest) and scaled back a planned equity raise, cutting its minimum target from $20 million to $10 million.

    debt financing

    359m shUS$36.7m

2024350m shares · US$30.7m market cap

  1. 18 Dec

    A strategic review found Bunker Hill Mining's restart budget had ballooned to $103 million (from $67 million, and $56 million in the original 2022 study), pushing the planned restart back to at least mid-2025; the company said it would draw on its Sprott standby facility and seek $30 million more in financing, plus explore a $150 million U.S. Export-Import Bank facility.

    resource reserve update

    350m shUS$30.7m
  2. 14 Aug

    Bunker Hill's subsidiary Silver Valley Metals took on a novel, expensive form of financing: a silver-denominated secured loan from Monetary Metals, with the first tranche worth US$16.4 million (equivalent to about 610,000 ounces of silver), a 15% interest rate payable in cash or silver, and security over essentially all of the subsidiary's and the company's properties and assets - reflecting how hard it had become to fund the restart on ordinary terms.

    capital raising announcement

    344m shUS$39.9m

2023256m shares · US$44.4m market cap

  1. 29 June

    Bunker Hill Mining closed an upsized $67 million project financing package with Sprott Streaming (a $46 million multi-metals stream plus a $21 million debt facility), bringing Sprott's total committed financing for the mine restart to $96 million.

    material agreement

    256m shUS$44.4m
  2. 31 Mar

    Bunker Hill raised C$6.2 million in a brokered private placement of special warrants at C$0.12 each (convertible into shares and warrants once SEC-registered), continuing to fund the Bunker Hill Mine restart alongside its larger Sprott-led financing package.

    capital raising announcement

    256m shUS$20.9m

2022220m shares · US$18.7m market cap

  1. 21 Oct

    Bunker Hill Mining filed an independent Preliminary Feasibility Study for restarting the mine, the next-stage economic study after the 2021 PEA.

    resource reserve update

    220m shUS$18.7m
  2. 14 Mar

    Bunker Hill Mining agreed to buy the Pend Oreille ore-processing plant from a Teck Resources subsidiary, to be relocated and used to mill ore at the restarted Bunker Hill Mine.

    material agreement

    164m shUS$39.5m
  3. 4 Feb

    Bunker Hill Mining finally completed the purchase of the Bunker Hill Mine outright on January 7, 2022, ending five years of leasing -- funded by an $8 million Royalty Convertible Debenture from Sprott Private Resource Streaming & Royalty Corp that also covered a $2 million EPA payment; it separately closed an upsized $6 million convertible debenture with Sprott for working capital and engineering studies.

    material agreement

    164m shUS$39.5m

2021164m shares · US$26.7m market cap

  1. 24 Sept

    Bunker Hill Mining published an updated Preliminary Economic Assessment showing a 42% jump in project value to $143 million, lower costs, and an extended 11-year mine life -- a significant improvement over the original study.

    resource reserve update

    164m shUS$26.7m

2020143m shares · US$52.2m market cap

  1. 18 Dec

    Bunker Hill Mining's initial drill results confirmed mineralization above the mine's existing resource boundary, expected to materially expand the resource base feeding its planned economic study.

    resource reserve update

    143m shUS$52.2m
  2. 25 Nov

    Bunker Hill Mining again renegotiated its option to buy the Bunker Hill Mine, cutting the purchase price by another 30% to $7.7 million and extending the option to August 2022, in exchange for a $2 million advance payment -- freeing up cash to keep drilling and advancing restart studies before having to commit to the purchase.

    material agreement

    138m shUS$46.8m
  3. 28 Aug

    Bunker Hill closed its brokered private placement at the full C$20.4 million raised across two tranches, led by Sprott Capital Partners and Cormark Securities - by far its largest financing to date, and the first appearance of the Sprott relationship that would go on to become the mine restart's primary funder.

    capital raising announcement

    79.3m shUS$29.4m
  4. 10 Aug

    Demand kept growing: Bunker Hill increased the brokered private placement again, to about C$20.4 million, and dropped the over-allotment option since it was no longer needed.

    capital raising announcement

    79.3m shUS$29.4m
  5. 5 Aug

    Strong investor demand let Bunker Hill upsize its brokered private placement 50%, to C$15 million.

    capital raising announcement

    79.3m shUS$29.4m
  6. 29 July

    Under new CEO Sam Ash, Bunker Hill announced a brokered private placement to raise up to C$10 million, alongside an extension of its Bunker Hill Mine lease - the opening move of what would become a much larger, oversubscribed raise.

    capital raising announcement

    79.3m shUS$58.4m

201969.8m shares

  1. 22 Oct

    Bunker Hill Mining renegotiated its lease and purchase option on the Bunker Hill Mine, cutting the buyout price from $45 million to $11 million ($6.2 million cash plus $4.8 million in stock) and eliminating an ongoing royalty -- a major improvement in the terms of owning the mine outright.

    material agreement

    69.8m sh
  2. 21 May

    Bunker Hill Mining's board approved a one-for-ten reverse stock split, to take effect at market open on May 23, 2019. Fractional shares were to be rounded up to the next whole share.

    security holder rights change

    41.5m shUS$7.1m

20183.3m shares · US$12.5m market cap

  1. 20 July

    Bunker Hill took on a US$1.5 million unsecured convertible loan from UK miner Hummingbird Resources (10% interest, convertible at $0.85/share) specifically to fund its EPA payment obligations tied to the Bunker Hill Mine's Superfund settlement. Hummingbird gained a board-seat right if its stake passes 5%, plus a right of first refusal on future company financings or asset deals.

    capital raising announcement

    3.3m shUS$12.5m
  2. 7 Mar

    Bunker Hill Mining signed a settlement with the EPA under which it will maintain mine-water infrastructure, pay US$20 million over seven years on behalf of the mine's owner/lessor Placer, and pay US$480,000 every six months for water treatment. In return the EPA agreed not to sue it over past contamination and not to enforce its lien, releasing it once payments are complete.

    debt financing

    33.0m shUS$452m

201724.9m shares · US$346m market cap

  1. 11 Dec

    Now renamed Bunker Hill Mining Corp., the company raised C$9.7 million in its first major financing since leasing the historic Bunker Hill Mine, led by Red Cloud Klondike Strike and Haywood Securities - funding lease payments, acquisition costs, and exploration/development at the mine.

    capital raising announcement

    24.9m shUS$346m
  2. 23 Aug

    Liberty Silver pivoted away from its Nevada exploration project, leasing the historic Bunker Hill zinc-lead-silver mine in Idaho from Placer Mining Corp with an option to buy it outright for $45 million -- the deal that would eventually reshape the company into Bunker Hill Mining Corp.

    debt financing

    24.9m shUS$286m
  3. 24 Jan

    Liberty Silver's lender BG Capital Group converted the entirety of its remaining loan (now increased to US$1.4 million with accrued interest) into shares, eliminating the company's debt to BGCG but leaving BGCG holding roughly 62% of the company - already its majority shareholder before this conversion.

    capital raising announcement

    12.4m shUS$8.6m

201512.4m shares · US$1.9m market cap

  1. 3 Feb

    Liberty Silver completed a 1-for-15 reverse stock split, shrinking its share count from about 185.3 million to 12.4 million shares -- a step often taken to prop up a depressed share price.

    security holder rights change

    12.4m shUS$1.9m

201485.2m shares · US$281m market cap

  1. 20 Oct

    Liberty Silver converted US$1,248,653.70 of its BG Capital loan into 99,892,296 shares at US$0.0125 each, lifting BGCG's stake from about 35% to about 70.1% and triggering a change of control. It also took a new US$1.25 million secured facility at 11% interest, convertible into shares at BGCG's option.

    capital raising announcement

    85.2m shUS$281m

201384.0m shares · US$630m market cap

  1. 15 Nov

    Liberty Silver finalized a $1.21 million secured loan with BG Capital Group at 11% interest, secured by essentially all company assets, with BG emerging as a roughly 10.3% shareholder -- underscoring how reliant the company had become on this single lender for working capital.

    debt financing

    84.0m shUS$630m

201280.7m shares · US$17.31bn market cap

  1. 16 Oct

    Liberty Silver closed its purchase of the Hi Ho Properties -- the only acreage within the Trinity land package it didn't already control -- from Primus Resources for $250,000 cash plus $1.86 million in stock and a 2% royalty, consolidating full ownership of the Trinity Silver project area.

    asset acquisition disposition

    80.7m shUS$17.31bn
  2. 22 Aug

    Liberty Silver filed an 8-K attaching a press release dated August 21, 2012. The filing text itself gave no details of what the release said.

    material agreement

    80.1m shUS$8.41bn
  3. 17 July

    Liberty Silver began an offer on July 16, 2012 to acquire all of Sennen Resources Ltd., offering 0.28 of a new Liberty Silver share for each Sennen share, subject to pro-ration and rounding. The offer was made under the US exchange-offer rule (Rule 802).

    business combination

    80.1m shUS$8.89bn

201170.9m shares · US$11.07bn market cap

  1. 21 Dec

    Liberty Silver's stock was approved for listing on the Toronto Stock Exchange (ticker LSL) - a meaningful liquidity and credibility milestone for the small explorer - triggering automatic conversion of US$3.25 million in previously-sold subscription receipts (from a November 2011 raise) into tradeable shares and warrants.

    capital raising announcement

    70.9m shUS$11.07bn
  2. 10 Nov

    Liberty Silver raised $3.25 million from Look Back Investments through a subscription-receipt financing, contingent on the Toronto Stock Exchange approving Liberty Silver's listing.

    material agreement

    70.9m shUS$6.92bn
  3. 3 Mar

    Liberty Silver announced an independently verified NI 43-101 mineral resource estimate for its Trinity Silver project in Nevada, an early derisking milestone for the property.

    resource reserve update

2010

  1. 5 Apr

    Liberty Silver Corp (predecessor to Bunker Hill Mining) entered an earn-in agreement with AuEx Ventures to earn up to a 70% interest in the Trinity Silver project in Nevada by spending $5 million on exploration over six years and completing a bankable feasibility study.

    material agreement