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Serabi significantly extends mine life at the Palito Complex as new 43-101 is published.

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Mineral reserves at Palito Complex triple to 206,400 ounces, extending mine life to over six years at current production.

  • Proven and Probable Reserves 206,400 ounces (prior 67,344 ounces)
  • Reserve grade 7.78 g/t Au (prior 7.0 g/t Au)
  • Mine life over 6 years (prior 2-3 years)
  • Measured and Indicated Resources 377,800 ounces (prior 252,000 ounces)
  • Inferred Resources 153,900 ounces
  • Total ore tonnes 824,800 tonnes
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Serabi significantly extends mine life at the Palito Complex as new 43-101 is published.

Serabi Gold (AIM:SRB, TSX:SBI), the Brazilian focused gold mining and development company, is pleased to announce updated Mineral Reserve estimates for its Palito Complex (being the Palito deposit and the Sao Chico satellite deposit), and the publication of a new Technical Report prepared in accordance with the standard of CIM and Canadian National Instrument 43-101, with an effective date of 31 July, 2023 as outlined below.

HIGHLIGHTS

Proven and Probable Reserves totalling 206,400 ounces (824,800 tonnes @ 7.78 g/t Au), a threefold increase on the previously disclosed total of 67,344 ounces as at 31 December 2021.

The average grade of 7.78 g/t Au, is an improvement of 11% over the mean grade of the December 2021 estimation.

Mineral Reserves at Palito are equivalent to over six years of operations at current production levels, without considering conversion of the additional Mineral Resources and more than 3 times the previous estimate of reserve life.

NCL Ingeniería y Construcción SpA of Santiago de Chile (“NCL”) have prepared this Mineral Resource and Mineral Reserve estimation together with a new 43-101 Technical Report which is available on the Company’s website and on SEDAR.

These Mineral Reserves are included in the Mineral Resources disclosed on 6 October 2023 which comprised:

Measured and Indicated (“M&I”) Resource of 377,800 ounces of contained gold (1,166,300 tonnes at an average in-situ grade of 10.08 g/t Au), an increase of 50% compared to December 2021.

Further Inferred Resource of 153,900 ounces (682,400 tonnes at an average in-situ grade of 7.01 g.t Au)

The new NI 43-101 compliant Technical Report can be accessed using the following link - https://bit.ly/3QLI5MP

Mike Hodgson CEO commented,

“This new Mineral Reserve of 206,400 ounces represents three times the previous estimation of December 2021. This is an outstanding outcome achieved through a lot of hard work at site, and a significant reward for an aggressive 18 month underground drilling campaign, which has clearly been very successful.

“Palito, like many small vein mines, faces challenges demonstrating longevity. Serabi has nonetheless established a track record of resource replenishment, as well as a strong history of converting resources to reserves. Palito is a generational deposit, its production having started in 2005 albeit often exhibiting only a two to three year reserve life. This latest reserve and resource estimate confirms that it remains a long-life asset capable of supporting current production levels for many years.”

The Mineral Reserve estimate was prepared by Mr Carlos Guzman of NCL Ingeniería y Construcción SpA, who is a Qualified Person under the Canadian National Instrument 43-101.

The Mineral Resource estimate was prepared by Mr Nicolas Fuster of NCL Ingeniería y Construcción SpA, who is a Qualified Person under the Canadian National Instrument 43-101.

Mineral Reserve Estimates

The updated Mineral Reserve estimates for the Palito Mine and the Sao Chico Mine are based on data as at 31 July 2023.

Table 1 - Total Mineral Reserves Statement for the Palito Complex (Palito and Sao Chico Mines), Para, Brazil (effective 31 July 2023)

PalitoSao ChicoCombined
Tonnes (000’s)Grade (g/t Au)Contained ounces (000’s oz)Tonnes (000’s)Grade (g/t Au)Contained ounces (000’s oz)Tonnes (000’s)Grade (g/t Au)Contained ounces (000’s oz)
Reserves
Proven567.88.08147.546.18.2012.2614.08.09159.7
Probable196.86.8343.214.17.683.5210.86.8946.7
Total Proven and Probable764.67.76190.860.28.0815.6824.87.78206.4

Notes to Table 1

  • Mineral Reserves have been rounded to reflect the relative accuracy of the estimates. Proven Mineral Reserves are reported within the Measured classification domain, and Probable Mineral Reserves are reported within the Indicated classification domain.
  • Proven and Probable Mineral Reserves are inclusive of external mining dilution and mining loss and are reported at a COG of 4.0 g/t gold assuming an underground shrinkage mining scenario, a gold price of US$1,800/oz, a 5.0:1 Brazilian Real to U.S. Dollar exchange rate, and metallurgical recoveries of 93.2% for Palito and 93.8% for São Chico.
  • Serabi is the operator and owns 100% of the Palito Complex such that gross and net attributable mineral reserves are the same.
  • The mineral reserve estimate was prepared by the NCL in accordance with the standard of CIM and NI 43-101, with an effective date of July 31 2023, and audited and approved by Mr. Carlos Guzmán of NCL, who is a Qualified Person under NI 43-101.

Mineral Resource Estimates – (previously disclosed on 6 October 2023)

The updated Mineral Resource estimates for the Palito Mine and the Sao Chico Mine are based on data as at 31 July 2023.

Table 2 - Total Mineral Resources Statement for the Palito Complex (Palito and Sao Chico Mines), Para, Brazil (effective 31 July 2023)

PalitoSao ChicoCombined
Tonnes (000’s)Grade (g/t Au)Contained ounces (000’s oz)Tonnes (000’s)Grade (g/t Au)Contained ounces (000’s oz)Tonnes (000’s)Grade (g/t Au)Contained ounces (000’s oz)
Resources
Measured Resources772.311.03273.8122.58.1031.9894.810.63305.7
Indicated Resources243.08.3965.628.57.076.5271.58.2672.1
Measured & Indicated Resources1,015.310.40339.3150.97.9138.41166.310.08377.8
Inferred Resources674.27.02152.28.27.841.7682.47.01153.9

Notes to Table 2:

  • Mineral Resources are not Mineral Reserves and have not demonstrated economic viability. Mineral Resources are reported inclusive of Mineral Reserves. All figures are rounded to reflect the relative accuracy of the estimates. Mineral Resources are reported within classification domains inclusive of in-situ dilution at a cut-off grade of 3.32/t gold assuming an underground extraction scenario, a gold price of US$1,950/troy oz, an operating cost of $198/t, and metallurgical recovery of 95%.
  • Serabi is the operator and owns 100% of the Palito Complex such that gross and net attributable mineral resources are the same. The mineral resource estimate was prepared by NCL Consultoria en Ingenieria en Minas in accordance with the standard of CIM and Canadian National Instrument 43-101, with an effective date of 31 July 2023 by Mr Nicolas Fuster, who is a Qualified Person under the Canadian National Instrument 43-101.
  • A three dimensional block model was used for Resources estimates.

Qualified Persons and Quality Control

The scientific and technical information contained in this news release pertaining to the Palito Complex has been reviewed and approved by the following Qualified Persons under National Instrument 43-101 – Standards of Disclosure for Mineral Projects ("NI 43-101"):

Carlos Guzman,RM CMC, FAusIMM, NCL Ingeniería y Construcción SpA

Gustavo Tapia, RM CMC, Metallurgical and Process Consultant, GT Metallurgy

Nicolas Fuster, RM CMC, MAusIMM, NCL Ingeniería y Construcción SpA

The Qualified Persons have verified the information disclosed herein, including the sampling, preparation, security and analytical procedures underlying the information or opinions contained in this announcement in accordance with standards appropriate to their qualifications.

Technical Report

A Technical Report prepared by NCL Ingeniería y Construcción SpA. In accordance with NI 43-101 has been filed on SEDAR (www.sedar.com) and on the Company’s website

Historical Estimates

Historical resource estimates for the Palito and Sao Chico ore-bodies are documented in the technical reports entitled

NI 43-101 Technical Report, Palito Mining Complex, dated 25 January 2018,

Mineral Resource Estimate on the Sao Chico Gold Project, Brazil, dated 15 October 2012,

Preliminary Economic Assessment for the Jardim Do Ouro Project, Para State, Brazil, dated 28 June 2012,

NI 43.101 Technical Report for the Jardim Do Ouro Project, Pará State, Brazil, dated 9 December 2010 and,

Mineral Resource and Mineral Reserve Estimate for the Palito Mine, Pará State, Brazil, as at 31 March, 2008, dated September 2008,

all of which are filed on the Company’s website at www.serabigold.com and SEDAR at www.sedar.com.

Historical resource estimates for the Coringa ore-body are documented in the technical reports entitled, NI 43-101 Technical Report, Coringa Project, Preliminary Economic Assessment, dated 21 October 2019, NI 43-101 Technical Report, Coringa Project, Mineral Resource Estimate , dated 18 April 2019, Coringa Gold Project, Brazil NI 43-101 Technical Report, dated June 15, 2017 and Coringa Gold Project, Brazil Feasibility Study NI 43-101 Technical Report, dated September 8, 2017.

APPENDIX

Mineral Reserves and Resources

About Mineral Resources

July 2023 MRrvEDecember 2021 MRsvE
Tonnes 000’sGrade (g/t Au)Contained ounces 000’sTonnes 000’sGrade (g/t Au)Contained ounces 000’s
Reserves
Proven Reserves567.88.08147.543.16.038.4
Probable Reserves196.86.8343.2208.47.4349.8
Total Proven and Probable Reserves764.67.76190.8251.57.1958.2

Comparison of Mineral Reserves for the Sao Chico Mine, Para, Brazil (effective 31 July 2023)

July 2023 MRrvEDecember 2021 MRsvE
Tonnes 000’sGrade (g/t Au)Contained ounces 000’sTonnes 000’sGrade (g/t Au)Contained ounces 000’s
Reserves
Proven Reserves46.18.2012.212.56.442.6
Probable Reserves14.17.683.535.25.836.6
Total Proven and Probable Reserves60.28.0815.647.75.999.2

Comparison of Combined Mineral Reserves for the Palito Complex, Para, Brazil (effective 31 July 2023)

July 2023 MRrvEDecember 2021 MRsvE
Tonnes 000’sGrade (g/t Au)Contained ounces 000’sTonnes 000’sGrade (g/t Au)Contained ounces 000’s
Reserves
Proven Reserves614.08.09159.755.66.1210.9
Probable Reserves210.86.8946.7243.67.2056.4
Total Proven and Probable Reserves824.87.78206.4299.27.0067.3

A comparison of the updated Mineral Resource Estimates (“MRE”) as at 31 July 2023 with the previously reported Mineral Resource Estimates as at 31 December 2021 published on 7 March 2022 is set out below. – as previously disclosed on 6 October 2023

Comparison of Mineral Resources for the Palito Mine, Para, Brazil (effective 31 July 2023)

July 2023 MREDecember 2021 MRE
Tonnes 000’sGrade (g/t Au)Contained ounces 000’sTonnes 000’sGrade (g/t Au)Contained ounces 000’s
Resources
Measured Resources772.311.03273.839.26.638
Indicated Resources243.08.3965.61,093.25.22184
Measured & Indicated Resources1,015.310.40339.31,132.45.27192
Inferred Resources674.27.02152.2882.15.00142

Comparison of Mineral Resources for the Sao Chico Mine, Para, Brazil (effective 31 July 2023)

July 2023 MREDecember 2021 MRE
Tonnes 000’sGrade (g/t Au)Contained ounces 000’sTonnes 000’sGrade (g/t Au)Contained ounces 000’s
Resources
Measured Resources122.58.1031.99.68.383
Indicated Resources28.57.076.5360.55.0058
Measured & Indicated Resources150.97.9138.4370.15.0961
Inferred Resources8.27.841.7547.64.5580

Comparison of Combined Mineral Resources for the Palito Complex, Para, Brazil (effective 31 July 2023)

July 2023 MREDecember 2021 MRE
Tonnes 000’sGrade (g/t Au)Contained ounces 000’sTonnes 000’sGrade (g/t Au)Contained ounces 000’s
Resources
Measured Resources894.810.63305.748.86.9811.0
Indicated Resources271.58.2672.11,453.75.17241.5
Measured & Indicated Resources1,166.310.08377.81,502.55.23252.5
Inferred Resources682.47.01153.91,429.74.83221.9
GLOSSARY OF TERMS
The following is a glossary of technical terms:
“ Ag ”means silver.
“ Au ”means gold.
“ CIM ”means the Canadian Institute of Mining, Metallurgy and Petroleum.
“ chalcopyrit e”is a sulphide of copper and iron.
“ Cu ”means copper.
“garimpo”is a local artisanal mining operation
“ garimpeiro ”is a local artisanal miner.
“ gossan ”is an iron-bearing weathered product that overlies a sulphide deposit.
“ g/t ”means grams per tonne.
“granodiorite”is an igneous intrusive rock similar to granite.
“ hectare ” or a “ ha ”is a unit of measurement equal to 10,000 square metres.
“igneous”is a rock that has solidified from molten material or magma.
“intrusive”is a body of rock that invades older rocks.
“ mineralised ”refers to rock which contains minerals e.g. iron, copper, gold.
“Mo-Bi-As-Te-W-Sn”Molybdenum-Bismuth-Arsenic-Tellurium-Tungsten-Tin
“ mt ”means million tonnes.
“ ppm ”means parts per million.
“ saprolite ”is a weathered or decomposed clay-rich rock.
“ sulphide ”refers to minerals consisting of a chemical combination of sulphur with a metal.

Assay Results

Assay results reported within this release include those provided by the Company's own on-site laboratory facilities at Palito and have not yet been independently verified. Serabi closely monitors the performance of its own facility against results from independent laboratory analysis for quality control purpose. As a matter of normal practice, the Company sends duplicate samples derived from a variety of the Company's activities to accredited laboratory facilities for independent verification. Since mid-2019, over 10,000 exploration drill core samples have been assayed at both the Palito laboratory and certified external laboratory, in most cases the ALS laboratory in Belo Horizonte, Brazil. When comparing significant assays with grades exceeding 1 g/t gold, comparison between Palito versus external results record an average over-estimation by the Palito laboratory of 6.7% over this period. Based on the results of this work, the Company's management are satisfied that the Company's own facility shows sufficiently good correlation with independent laboratory facilities for exploration drill samples. The Company would expect that in the preparation of any future independent Reserve/Resource statement undertaken in compliance with a recognised standard, the independent authors of such a statement would not use Palito assay results without sufficient duplicates from an appropriately certificated laboratory.

Cleaned text: letterheads, contacts and legal notices removed. View the original announcement ↗ · Company filings. Not investment advice.

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