Pinnacle Minerals Limited · ASX:PIM
Pinnacle Minerals — Merger or Acquisition (October 2025)
26 slides from Pinnacle Minerals's merger presentation, Oct 16, 2025
Slide 1: New Acquisitions Presentation
For personal use only New Acquisitions Presentation ANTIMONY AND GOLD - IDAHO • NEIGHBOURING PERPETUA’S STIBNITE MINE & RESOLUTION MINERALS’ HORSE HEAVEN PROJECT • PAST PRODUCING MINES ANTIMONY - WASHINGTON • PAST PRODUCING ANTIMONY, GOLD AND SILVER MINES Pinnacle Minerals Investor Presentation Octo
Slide 2: Antimony and Gold Idaho; Antimony Washington
For personal use only ANTIMONY AND GOLD - IDAHO ANTIMONY - WASHINGTON • NEIGHBOURING PERPETUA’S STIBNITE • PAST PRODUCING ANTIMONY, GOLD AND MINE AND RESOLUTION MINERALS’ SILVER MINES HORSE HEAVEN PROJECT • PAST PRODUCING MINES Pinnacle Minerals Investor Presentation October 2025 2
Slide 3: Disclaimer and Forward-Looking Statement
DISCLAIMER AND FORWARD-LOOKING STATEMENT This presentation been prepared by Pinnacle Minerals Limited (Company). This presentation is not an offer, invitation, solici tation or other recommendation with respect to the subscription for, purchase or sale of any securities in the Company. This presenta
Slide 4: Competent Persons and Compliance Statement
COMPETENT PERSONS AND COMPLIANCE STATEMENT The information in this presentation that relates to exploration results is based on, and fairly represents, information and supporting documentation compiled by Mr William Witham, who is a Member of the Australasian Institute of Geoscientists (MAIG). Mr Wi
Slide 5: Deal Summary
DEAL SUMMARY . For personal use only Pinnacle Minerals Limited (ASX: PIM, or the Company) is pleased to announce it has executed a binding sale agreement to acquire Idaho Antimony Corporation the owner of eight antimony, gold and silver projects in two highly-prospective and well-established mining
Slide 6: Eight Projects in the Package
EIGHT PROJECTS IN THE PACKAGE Idaho, USA Idaho Antimony Corp controls a total of 208 USFS claims (16.87 km2 license area) in Idaho, covering and For personal use only surrounding historic antimony & gold mines and workings neighbouring Perpetua Resources’ $3 billion Stibnite Mine. This portfolio inc
Slide 7: Idaho - Mining Hub
IDAHO - MINING HUB Idaho Antimony Corp controls a portfolio of assets For personal use only in a historic and mining-friendly jurisdiction IDAHO ANTIMONY CORP PPTA.NAS RML.ASX A$4.24 bn market cap AUD$108m market cap Ranked 7th best Excellent SPEED Act (2025) mining jurisdiction infrastructure and t
Slide 8: Strategic Location – Between Two Major Mines
STRATEGIC LOCATION – BETWEEN TWO MAJOR MINES For personal use only Projects are located between Perpetua Resources’ (Mkt Cap AUD $4.24bn) Stibnite Mine and Resolution Minerals’ (Mkt Cap A$80m) Horse Heaven Project Shares geological characteristics and mineralization style with Stibnite Positioned wi
Slide 9: Idaho Project Portfolio
IDAHO PROJECT PORTFOLIO Idaho Antimony Corp controls 208 USFS claims covering 16.9 km² across six key projects: For personal use only 1 Thunder Mountain Gold 2 Smith Creek Project 3 Routson Project 4 Logan Creek Project 5 Silver Cliff Lode Project 6 Big Creek Project Lightning Peak open pit (inside
Slide 10: Idaho Project Portfolio
IDAHO PROJECT PORTFOLIO For personal use only Big Creek Project 6 1 Thunder Mountain Gold Project Idaho Antimony Corp controls 208 USFS claims Silver Cliff Lode Project 5 2 Smith Creek Project covering 16.9 km² across six key projects: Logan Creek Project 4 3 Routson Project Lightning Peak open pit
Slide 11: Thunder Mountain Gold Project – Overview
THUNDER MOUNTAIN GOLD PROJECT – OVERVIEW For personal use only Significant potential for Historic production district mine restart and resource with multiple past- expansion producing mines Includes the Lightning Produced over 100,000 oz Peak open pit (former Au between 1986–1992* Coeur d’Alene oper
Slide 12: Historic Production
HISTORIC PRODUCTION Thunder Mountain – Historic Production For personal use only Dewey and Sunnyside mines Dewey Mine: (Adjacent to Lightning Peak Open Pit PIM’s claims) (Within PIM’s claims) Year Crude ore (tons) Gold (ounces) Silver (ounces) 1902 3,162 711.63 394 1903 4,123 1,030.00 1904 8,636 3,9
Slide 13: 2025 Spring Field Campaign – Thunder Mountain
2025 SPRING FIELD CAMPAIGN – THUNDER MOUNTAIN For personal use only 3 4 5 Completed Spring 2025 2 5 3 4 Confirmed presence of historic workings 2 and mineralization across project area 1 Supports planned geological and environmental assessments 1 Pinnacle Minerals Investor Presentation October 2025
Slide 14: Lightning Peak Open Pit Mine Restart Potential
LIGHTNING PEAK OPEN PIT Lightning Peak open pit (Inside Pinnacle Minerals claims) MINE RESTART POTENTIAL For personal use only The Lightning Peak Open Pit Mine is located within Pinnacle Minerals and was part of Coeur d'Alene Mines Corporation’s heap-leach gold operation In 1989, the mine produced 1
Slide 15: Smith Creek Project
PROJECT – SMITH CREEK PROJECT For personal use only 2.1 km² license area. Northernmost Idaho target with historic antimony occurrences. Werdenhoff Small-scaled Gold Operation Structural contact zones between gneiss and phyllite enhance potential. Pinnacle Minerals Investor Presentation October 2025
Slide 16: Routson Project
PROJECT – Idaho Antimony 2025 Field Visit ROUTSON PROJECT For personal use only 4.9 km² license area. Contains historic Green Spider and Routson prospects. Big Creek Airstrip Adjacent to Big Creek Airstrip Historic mining workings from Hosts marble and calc-silicate metasiltites the project with met
Slide 17: Logan Creek Project
PROJECT – LOGAN CREEK For personal use only 1.5 km² license area located 7.5 km SW of Routson. Underlain by Historical antimony porphyritic granite to occurrences reported granodiorite along Johnson Creek Shear Pinnacle Minerals Investor Presentation October 2025 17
Slide 18: Silver Cliff Lode Project
PROJECT – SILVER CLIFF LODE For personal use only 1 km² license area located ~14 km west of Perpetua, 6kms south of Yellow Pine Historic samples up to 4.2% Sb Hosted in muscovite-biotite granite to granodiorite Pinnacle Minerals Investor Presentation October 2025 18
Slide 19: Big Creek Project
PROJECT – BIG CREEK PROJECT For personal use only 3.5 km² license area. Big Creek Thunder Mountain Geological analogue to Perpetua’s Stibnite Gold Project. Stibnite Gold Project Roof Pendants Present Strong potential for antimony-gold mineralization in similar structural setting. Pinnacle Minerals I
Slide 20: Washington Antimony +Au +Ag Projects
WASHINGTON ANTIMONY +Au +Ag PROJECTS Projects: For personal use only Antimony Queen Project Justice Mine Project Location: North-central Okanogan County Washington and Cascade Range Historic production of antimony (Sb), gold (Au), and silver (Ag) Pinnacle Minerals Investor Presentation October 2025
Slide 21: Antimony Queen Project
ANTIMONY QUEEN PROJECT For personal use only Area: 1,235 Historic ~1,000 tons acres (~5 km²) production since stibnite ore & in Okanogan 1906 several hundred County tons antimony oxide Recent Work: 2025 LiDAR analysis confirmed historic adits and mine workings Historical productions based on : CES,
Slide 22: Justice Mine Project
JUSTICE MINE PROJECT For personal use only Area: 63 acres (0.25 km²) Located in Monte Cristo district, active 1889–1907 Two Mine area Combined production (Justice + Golden Cord): ~34,000 tons; early Rockefeller syndicate backing 78 miles from Seattle Historical productions based on : Fritz E. Wolff,
Slide 23: Capital Structure
CAPITAL STRUCTURE Indicative Capital Structure For personal use only Shares Options Current issued capital 111,829,132 64,760,800 Securities to be issued under the 37,500,000 18,750,000 Placement Securities to be issued as Consideration (plus Facilitation Fee*) 51,718,750* 29,218,750* TOTAL 201,047,
Slide 24: Board of Directors
BOARD OF DIRECTORS William (Bill) Witham Lincoln Liu For personal use only Executive Chairman Non-Executive Director BSc (Hons) Geology UWA MAIG BBus, MCom, MBA • Bill Witham is an experienced Executive Director skilled in corporate finance, government relations and mineral exploration in Australia,
Slide 25: Contact
For personal use only +61 417 097 172 CONTACT admin@pinnacleminerals.com.au william.witham@pinnacleminerals.com.au PINNACLE MINERALS abbey@janemorganmanagement.com.au LTD www.pinnacleminerals.com.au Pinnacle Minerals Investor Presentation October 2025 25
Slide 26: Thank You
For personal use only THANK YOU Pinnacle Minerals Investor Presentation October 2025 26
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