Abx Group Limited · ASX:ABX
Abx — Australian Institute of Geoscientists REE Seminar 2023
14 slides from Abx's conference presentation, Mar 21, 2023
Slide 1: Presentation – ABx's ionic adsorption clay rare earth deposits in Tasmania
ASX Announcement 21 March 2023 ASX: ABX Presentation – ABx’s ionic adsorption clay rare earth deposits in Tasmania Australian Institute of Geoscientists – REE Seminar For personal use only In accordance with the requirements of Listing Rule 3.1 we submit the attached material being presented to the
Slide 2: ABx's ionic adsorption clay rare earth deposits in Tasmania
Level 5 52 Phillip St 1 Sydney 2000 ASX ABX For personal use only ABx’s ionic adsorption clay rare earth deposits in Tasmania Ian Levy, Director 0407 189 122 ilevy@abxgroup.com.au AIG REE Seminar, Perth 21 March 2023
Slide 3: Qualifying statements
2 Qualifying statements For personal use only Disclaimer Regarding Forward Looking Statements This ASX announcement (Announcement) contains various forward-looking statements. All statements other than statements of historical fact are forward-looking statements. Forward-looking statements are inher
Slide 4: ABx rare earth discoveries in Tasmania
3 ABx rare earth discoveries in Tasmania For personal use only Ticks all boxes ❑ True ionic adsorption clay IAC REE deposits * ❖ Rich in permanent magnet REEs ❖ Can be developed quickly at low cost ❑ Shallow depth, typically 1 to 6m from surface ❑ Favourable land setting Progress ❑ Deep Leads & Rubb
Slide 5: ABx rare earth resources tripled to 13.9Mt
4 ABx rare earth resources tripled to 13.9Mt See ASX release 20 March 2023 For personal use only 720 holes, 5,825m drilled and 2,091m assayed High extraction rates 30% to 83% in ANSTO desorption tests GOOD MIX OF REE ❖ Permanent magnet REOs, La and Y = High Value REEs = 58% of the REE mix (relativel
Slide 6: Deep Leads–Rubble Mound REE prospect significantly enlarged
5 Deep Leads–Rubble Mound For personal use only REE prospect is significantly enlarged • REE extends 6.5km x 7km = 36.6km2 Thicker mineralisation identified • Drill technique modified for difficult drilling • Thick REE zones discovered 30m, 21m, 13m thick • Economic assessment of thickened zones beg
Slide 7: High extraction tests by ANSTO
6 High extraction For personal use only 71 tests by ANSTO • 70% of samples averaged 50% extraction • Clay-rich samples gave highest extractions 60-83% • Gravels had low extractions • CaO content reduces extraction rates • Metallurgical tests to assess recovery vs concentrate grade economics As good
Slide 8: Compared to China's Deposits
7 Compared to China’s Deposits For personal use only 2,500 2,000 Grade TREO ppm 1,500 Deep Leads – Rubble Mound 1,000 500 TREO grades for selected Chinese ionic clay deposits 0 Minimum size is typically ~10 million tonnes which is less than ABx’s current resource. ABx will select higher grade zone(s
Slide 9: Deep Leads–Rubble Mound business concepts
8 Deep Leads–Rubble Mound business concepts For personal use only Mine Concentrate Rehabilitate Improve Sell bulk REE concentrates to • Dredge & • Simple, low- • Water treated • Contour land downstream pump cost leachate processors • Clays • Infrastructure • Hydraulic mine • Clay only? dewatered • B
Slide 10: Regional Geology
9 Regional Geology Basalts & dolerite in northern Tasmania Basalt ages in Ma For personal use only Deep Leads 1. Cenozoic erosion, soils developed 2. Alkali Basalts filled rivers and gullies 20 to 30Ma. Heavily eroded and bauxitised in places. Alkali Basalts 3. Tholeiitic dolerite sills intruded 170
Slide 11: Geology
10 Deep Leads – Rubble Mound Geology For personal use only 1. Shallow clay layer: Bauxite-laterite & clays with bauxite & dolerite grains Tertiary laterite 2. REE clay layer & bauxite Jurassic 3. River gravel layers in a few places dolerite 4. Weathered dolerite Bauxite 5. Fresh dolerite - columnar
Slide 12: Interpretation
11 Deep Leads – Rubble Mound Interpretation For personal use only
Slide 13: Drilling
12 Deep Leads – Rubble Mound drilling For personal use only Open land on recently harvested hardwood plantations and farmland. Supportive landholders Good access on highway and all-weather logging roads ALL TOO EASY?
Slide 14: Drilling challenges
13 Deep Leads – Rubble Mound drilling challenges For personal use only Clay + high water flow = mud Mud + river gravel = clogged line Mud + gravel + hard dolerite = X#$! We still managed to drill 37.5m of dry clay samples
ABx Group — Australian Institute of Geoscientists REE Seminar 2023 on 6ix