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Developing a Large Scale Zinc
Project in the Yukon

Among the biggest with >4Mt
Contained Zn + Pb

2018 Resource update Resource Chart

May 2018 PEA Shows Attractive Economics

2018 PEA

Fireweed Zinc: Meeting Demand

Fireweed Zinc’s Macmillan Pass Project is among the largest undeveloped zinc mining projects in the world.

We have completed a $5M financing in February 2019, which included a lead order from Teck Resources Ltd, the world’s third largest zinc miner.

Summer 2018 showed resource expansion potential including a step-out intersection of 21.1% Zinc, 13.5% Lead and 243 g/t Silver over 16.4m. The 540sq-km land package is host to 4 mineralized systems with evidence of additional more along prospective horizons.

A Statement from Fireweed Zinc CEO, Brandon Macdonald

Brandon Macdonald, chief executive officer, stated: "These results confirm the large size and upside potential of Boundary zone. Hole NB19-002 is the best ever hole drilled in this zone and clearly demonstrates that there may be potential beyond the past wide, but lower-grade, intersections drilled historically, as impressive as they were. Boundary zone results along with recent drilling success at Tom North and End zone have potential to expand on our current resources, which are already among the largest undeveloped zinc resources in the world, as well as improve project economics."

Macdonald Image

Boundary Zone Giant Potential

Clearly defined central zone shows consistency

  • Several holes >200 m of 2.5% Zn
  • Central Area is at minimum 400 m x 300 m with a thickness of >200 m

Broader zone stretches ~ 1.5 km

  • Far West: NB-91-24A - 29m of 3.2% Zn
  • Far East: NB82-01 - 4 intersections > 8 m and 3.5% Zn

2019 Drilling successfully hit on both holes

  • NB19-001:
    • 250m of 3.44% Zinc from surface
    • Including 23.31 m of 16.35% Zn
  • NB19-002:
    • 100m of 7.94% Zn from surface
    • Within 230m of 4.14% Zn

Boundary Zone
Ore Sorting Game Changer

Mineralization very different from Tom & Jason

  • sphalerite-siderite-pyrite and minor galena in veins, stockworks, interstitial disseminations;
  • and as replacement of matrix and clasts within coarse clastic rocks

Preliminary Ore-Sorting Test Very Encouraging

  • Potential to upgrade the feed grade from 2.5% Zn to >5% Zn at a low cost
  • Rejection rate expected between 70-50%, with zinc recoveries from 80% to 85%
  • Mass pull ranged from 30% to 50%
  • This final 2019 drill hole at the Boundary Zone intersected 4.14% Zinc over a true width of 230 metres with a near surface higher grade section of 7.94% Zinc over a true width of 100 metres and high grade subintervals including 42.49% Zinc over 6.4 metres and local very high grade sections including >60% Zinc over 0.6 metres. The zone remains open to depth and along strike.
  • Boundary Zone has potential to be mined in a low strip open pit and to be upgraded through low cost ore sorting technology for processing.
Boundary Zone Cross Section Boundary Zone Section

Step Out Target
Of Tom North

No Drilling since 1978 (one hole): most holes in 1951 and 1952

  • Tom North was not included in 2018 resource update

Intesections of upto 22.5 m at 6.1% Zn, 1.0% Pb in short holes

  • Shallow intersections suggest potential amenability to open-pit

2019 Drilling successfully hit on 7 holes

  • Inferred resource now possible
  • May add >1 year to open pit mine life
Tom West And Tom North Zones

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