Slide 1: Limon Epithermal Gold-Silver Drilling Results and El Palmar update
Limon Epithermal Gold-Silver Drilling Results and El Palmar update STM 29 March 2023
Slide 2: Disclaimer
Disclaimer DISCLAIMER FORWARD-LOOKING STATEMENTS To the maximum extent permitted by law, no representation, warranty or This Presentation includes certain statements that may be deemed undertaking, express or implied, is made and, to the maximum extent “forward-looking statements”. All statements in
Slide 3: Sunstone Snapshot
Sunstone Snapshot Ecuador focussed, gold-copper explorer and discoverer ASX - STM Market Capitalisation 1 A$86.5 mill Cash + Equity Investments 2 A$11.2 mill Shares on Issue 2,620 million Top 20 Shareholding 36% Institutional and Family Office Shareholding 29% Board and Management Shareholding 5.1%
Slide 4: Ecuador
Ecuador • Support for responsible mining • Responsible mining and exploration contributing significantly to FDI, taxes, employment, infrastructure, communities, environmental studies and management • Investment Protection Agreements signed on several projects • Major mining companies present and som
Slide 5: Investment Opportunity
Investment Opportunity • Simple proposition – discovery adds STM share price A$ significant shareholder value • Underpinned by Inaugural MRE December 2022; 2.7Mozs AuEq* Weak Global Markets • The Sunstone team has a track record of More large scale copper-gold porphyry discovery Discoveries • Tujuh
Slide 6: ESG considered across the business
ESG considered across the business Sunstone appreciates the strong community support that it has at its projects and takes its environmental, social and governance issues very seriously. It is committed to advance its social performance in the areas where we work Sunstone is aiming to produce its in
Slide 7: Bramaderos, Southern Ecuador
Bramaderos, Southern Ecuador Brama-Alba hill Espiritu core processing facility Iron horse used for transporting equipment Espiritu core processing facility • 4,984ha concession • Adjacent to the Pan American Highway • At ~900m asl • Multiple gold-copper targets within the concession all easily acces
Slide 8: Bramaderos – rich with gold-copper targets
Bramaderos – rich with gold-copper targets LIMON - Outcropping gold-copper porphyry and HS epithermal 97.6m at 0.71g/t gold and 0.23% copper in trench LMDD010 in 2022 delivered 79m at 0.52g/t gold, 0.19% copper, 9.4g/t silver (0.9g/t AuEq) from 90m Sunstone drilling (4 holes) in 2019-20 delivered 13
Slide 9: Limon – gold-silver epithermal above porphyry
Limon – gold-silver epithermal above porphyry • Limon drilling has targeted porphyry gold-copper and epithermal gold-silver-base metal • High grade trench and drill hole LMDD010 in the western target zone intersected near surface high grade gold- copper in porphyry style mineralisation • The epither
Slide 10: Limon – gold-silver epithermal
Limon – gold-silver epithermal o 176.7m at 1.1g/t AuEq* (0.97g/t gold and 10.1g/t silver), from 6.8m in LMDD017, including ▪ 13.7m at 0.81g/t AuEq* (0.68g/t gold, 14.9g/t silver), from 29.3m ▪ 15.0m at 3.97g/t AuEq* (3.91g/t gold, 7.69g/t silver), from 81.2m, including Hills in background o 1.7m at
Slide 11: Limon – gold-silver epithermal
Limon – gold-silver epithermal LMDD017 (39.3m) Hydrothermal Breccia (0.73g/t Au 5.6g/t Ag) Hills in background 11
Slide 12: Limon – view to NE
Limon – view to NE Hills in background 12
Slide 13: Brama-Alba – initial Mineral Resource estimate
Brama-Alba – initial Mineral Resource estimate JORC Tonnage (Mt) Au (g/t) Cu (%) Ag (g/t) AuEq AuEq* Classification (g/t) (Mozs) Indicated 9 0.38 0.09 1.1 0.53 0.2 Inferred 147 0.35 0.11 1.3 0.53 2.5 Total 156 0.35 0.11 1.3 0.53 2.7 - Due to the effect of rounding, the total may not represent the su
Slide 14: Brama-Alba – mineralisation from surface
Brama-Alba – mineralisation from surface 1.6 km Alba Hills in background Brama • View looking NE; December 2022 • 1.2km long mineralised system – so far • Outcropping gold-copper • Development would initially mine a hill – very low strip ratio • Higher grade domains close to surface • Many opportuni
Slide 15: Brama-Alba – higher grade domains
Brama-Alba – higher grade domains • Large porphyry system, with some higher-grade domains • BMDD034 – intersected 202m at 0.86g/t AuEq close to surface at Alba • BMDD008 – intersected 302m at 0.73g/t AuEq close to surface at Brama • BMDD012 – intersected 111m at 2.35g/t gold from 93m, including 7.2m
Slide 16: Brama-Alba – initial Exploration Target
Brama-Alba – initial Exploration Target Exploration Target Min. Tonnage Max. Tonnage Metal Content (Mt) (Mt) Metal Content Min. AuEq (Mozs) Max. AuEq (Mozs) 3.3 to 8.6Mozs AuEq Brama-Alba (excluding Comprising MRE areas) 70 100 0.79 2.57 Melonal 150 200 1.93 4.50 2.1 to 6.6Mozs gold Limon 35 60 0.56
Slide 17: El Palmar, northern Ecuador
El Palmar, northern Ecuador • Highly prospective belt of rocks related to the Toachi Fault Zone • To date includes the >2.7Bt Alpala copper-gold porphyry deposit at Cascabel, the >0.53Bt Tandayama-America copper-gold porphyry deposit at Cascabel, and the >1Bt Llurimagua copper-moly porphyry deposit
Slide 18: El Palmar; multiple targets
El Palmar; multiple targets • Mineralisation from surface • At T1, gold-copper porphyry system with wide intervals (>400m) at >0.4g/t gold and 0.15% copper and including intervals of 100m – 170m of >0.7g/t gold and 0.2% copper (see ASX announcements 25th May 2022 and 7th October 2021) • Currently dr
Slide 19: El Palmar; T1 and T2 gold-copper targets
El Palmar; T1 and T2 gold-copper targets T1 target; original discovery in 2021 • Gold-copper porphyry deposit mineralised from surface • Hole EPDD021 intersected mineralisation to a down hole depth of 872m; • 866.55m at 0.26g/t gold and 0.1% copper, including • Higher grade intervals such as 11.25m
Slide 20: El Palmar; T2 porphyry gold-copper target
El Palmar; T2 porphyry gold-copper target • Mineralisation from surface; outcropping 220m long stockwork zone, epithermal overprint on porphyry • Very significant MT conductivity anomaly, along trend from increasing copper response in EPDD024 • Bound by regionally significant Toachi fault – a contro
Slide 21: What’s ahead
What’s ahead ✓ 2023 – deliver new discoveries at both El Palmar and Bramaderos ✓ Bramaderos • Limon drilling – follow-up to LMDD017 – will fundamentally change Bramaderos • Drill to grow Exploration Target • Drill to convert Exploration Target to Mineral Resources • Deliver additional discoveries at
Slide 22: Competent Persons Statement
Competent Persons Statement Competent Persons Statement The information in this report that relates to Mineral Resources is based on information compiled by Mr Aaron Meakin. Mr Aaron Meakin is a full-time employee of CSA Global Pty Ltd and is a Member and Chartered Professional of the Australasian I
Slide 23: About Sunstone Metals
About Sunstone Metals Sunstone has an advanced portfolio of exploration and development projects in Ecuador and Scandinavia. The portfolio comprises: •The Bramaderos Gold-Copper Project where Sunstone owns an 87.5% interest with Cornerstone Capital Resources, a subsidiary of SolGold, holding 12.5% (
Slide 24: Call Email Web
CALL EMAIL WEB ASX:STM +61 7 3368 9888 info@sunstonemetals.com.au sunstonemetals.com.au