TSXV: PGZ | OTCQX: PGZFF | FSE: 2EU

Copper metallurgy tests confirm saleable concentrate grades are achievable across the deposit through a simple conventional flotation process flowsheet
Excellent recoveries up to 88% copper
Concentrate grades up to 32.5% copper, with payable silver content and low deleterious elements
Positive results advance La Romana to the preliminary design phase of the metallurgical process

VANCOUVER, BC, March 21, 2024 /PRNewswire/ -- Pan Global Resources Inc. ("Pan Global" or the "Company") (TSXV: PGZ) (OTCQB: PGZFF) (FSE: 2EU) is pleased to announce successful results for a froth flotation variability test program for copper ("Cu") recoveries at the Company's flagship La Romana copper-tin-silver deposit in the Escacena Project, southern Spain. Metallurgy tests for tin recovery are also underway and will be reported when available.

"The new copper metallurgy test results for the La Romana deposit are further confirmation that simple conventional froth flotation can produce a high-value, high-quality, and clean copper concentrate at potentially lower cost than the average within the pyrite belt. These characteristics are highly desirable for smelters and potentially attractive for blending with lesser quality concentrates to increase the value and reduce penalty costs. The results are an important project development step to determine optimum process economics, metal recoveries, cash flow projections, and economic studies," said Tim Moody, Pan Global's President & CEO.

The metallurgical test program is being conducted by Wardell Armstrong International (United Kingdom), under the coordination and management of Minepro Solutions SL (Spain).

Minepro Solutions SL reported on March 19, 2024: "As compared to the average of deposits within the Pyrite Belt, the La Romana mineral deposit has demonstrated lower energy requirements for both crushing and grinding, coarser liberation sizes, as well as superior performance in the flotation process for copper. This includes higher concentrate grades and improved recoveries using conventional circuits and chemical agents, which indicates an anticipation of moderate operating costs related to the process."

Key test results

A simple conventional flotation flowsheet can achieve saleable concentrate grades and good recoveries for La Romana copper mineralization.
A series of open circuit rougher and cleaner flotation tests were performed on composites from 10 blocks distributed across the deposit (see Figure 1 below) and compared to a reference sample from previous test work:
- Head grades ranged from 0.33% Cu to 0.54% Cu (average 0.40% Cu)
- Flotation tests for seven of the blocks (blocks 1-5, 8 and 10) established attractive concentrate grades ranging from 26.8% to 32.5% Cu (average 29.1% Cu) and overall recoveries from 73.5% to 88.3% Cu (average 81.4% Cu)
- Additional tests with finer regrinding indicate target concentrate grades and good recoveries for the other three blocks (blocks 6, 7 and 9)
- Where concentrates exceeded 30% Cu, the number of cleaning cycles were reduced from 3 to 2, simplifying and improving copper recovery
- Results indicate copper concentrate grades and recoveries increase with higher head grades
Locked Cycle Tests (LCT) conducted on four of the 10 blocks resulted in Cu recoveries to concentrates ranging from 72% to 88.7% Cu and concentrate grades of 22.7% to 30.6% Cu. These compare closely to the 83.54% recovery and concentrate grade of 28.54% Cu for the reference sample used as the baseline for comparison.
Multi-element analyses on the final concentrates from the four LCT confirmed low concentrations of deleterious elements (As, Sb, Bi, Hg, Cl, and F) and the potential for a silver credit with grades from 88 to 102g/t Ag, contributing to a higher Net Smelter Return potential.
Tests to determine energy required for milling ore returned Bond Ball Mill Work Index (BBMWi) results ranging from 12.23 to 16.97 kWh/t (average 14.99 kWh/t). The average energy requirement is a slight improvement on the reference sample (15.48 kWh/t), and is classified as medium to hard.
Additional optimization of the flotation processing and costing will be undertaken to enhance potential economics.

Variability Test Program

The primary objective of the La Romana metallurgical test program is to determine the optimal mineral processing flowsheet and treatment plant design to produce marketable copper and tin concentrates.

The metallurgical variability study and new BBMWi tests were carried out using drill core sample composites selected from 10 blocks distributed throughout the La Romana deposit, and at different depths to help simulate different mining extraction phases. Applying the same test conditions, the results for all the blocks were compared with a reference sample ("REF") from previous successful metallurgical test work reported on April 11, 2023.

The processing flowsheet for the variability tests replicated the flowsheet and chemical reagents used for the reference sample. Specifically:

Each composite consisted of a minimum 30 kg of material from selected drill core
Initial crush to reduce the material to 1mm for head grade assay and comminution tests, including ball milling amenability and net power requirements
Primary grind size of 106 microns, followed by a copper rougher flotation stage to maximize recovery of the copper minerals to a concentrate at a coarse particle size
Regrinding of the rougher concentrate down to 20 or 15 microns, contingent upon the cleaner performance
Further extraction and upgrading of the copper concentrates through a series of two to three cleaner flotation stages
Locked Cycle Tests on 4 of the 10 blocks
Recoveries calculated from correlating locked cycle tests results with open circuit flotation results

Approximately 50 additional drill holes were completed at La Romana after the samples for the variability test program were selected in May 2023, and the copper deposit has been extended to the west at surface by 400 meters and remains open for further expansion. Consideration will be given to extending the metallurgical test work to the western extension of La Romana.

Tin metallurgy results are expected to be reported shortly, and results are pending for additional drill holes at the Cañada Honda discovery. Additional drilling is planned at both La Romana and Cañada Honda as part of the 2024 drilling program.

Table 1 - Summary Locked Cycle Test results and reference sample (REF)

                  Head Grade Concentrate Grade  Recovery


            BLOCK       Cu %             Cu %     Cu %


     
      REF             0.39              28.54      86.40


      
      2              0.37              30.60      87.61


      
      5              0.38              22.71      78.23


      
      6              0.34              25.45      71.98


     
      10              0.37              23.86      88.68

Table 2 - Head grades, Open Circuit concentrate grades and recoveries

             Block            Cycles Head Grade    Grind   Regrind        Open Circuit     Interpolated
                                                                                            LCT


                  Cu %               µm          µm       Cu %       Cu % Recovery


     
      REF            1 Ro + 3
                          Cl               0.39       106         20                 30.18            86.15


     
      B.1            1 Ro + 2
                          Cl               0.33       106         20                 32.49            76.40


     
      B.2            1 Ro + 2
                          Cl               0.37       106         20                 31.17            88.83


     
      B.3            1 Ro + 2
                          Cl               0.54       106         20                 30.56            66.62


     
      B.4            1 Ro + 3
                          Cl               0.47       106         20                 28.55            84.43


     
      B.5            1 Ro + 3
                          Cl               0.38       106         20                 20.64            88.18


     
      B.6            1 Ro + 3
                          Cl               0.34       106         15                 21.51            74.34


     
      B.7            1 Ro + 3
                          Cl               0.35       106         20                 17.03            66.59


      
      15                 22.39(1)    73.61(1)


     
      B.8            1 Ro + 2
                          Cl               0.41       106         20                 28.77            82.88


     
      B.9            1 Ro + 3
                          Cl               0.39       106         20                 15.90            77.91


      
      15                 20.91(1)    83.22(1)


     
      B.10           1 Ro + 3
                          Cl               0.37       106         20                 25.33            87.91


              Ro = Rougher, Cl = Cleaner


                                           (1)
                 = Estimated

Table 3 - Bond Ball Mill Work Index comminution test results

                             BLOCK                             kWhr/tonne


             
              B.1                                         13.91


             
              B.2                                         15.78


             
              B.3                                         16.67


             
              B.4                                         16.97


             
              B.5                                         13.70


             
              B.6                                         14.92


             
              B.7                                         12.23


             
              B.8                                         14.87


             
              B.9                                         15.16


            
              B.10                                         15.66


                            Average                                 14.99

About the Escacena Project

The Escacena Project comprises a large, contiguous, 5,760-hectare land package controlled 100% by Pan Global in the east of the Iberian Pyrite Belt. Escacena is located near the operating mine at Riotinto and is immediately adjacent to the former Aznalcóllar and Los Frailes mines where Minera Los Frailes/Grupo México is in the final permitting stage with construction anticipated to start in 2024. The Escacena Project hosts Pan Global's La Romana copper-tin-silver and Cañada Honda copper-gold discoveries and a number of other prospective targets, including, Bravo, Barbacena, El Pozo, Romana Norte, San Pablo, Zarcita, Hornitos, La Jarosa, and Romana Deep.

About Pan Global Resources

Pan Global Resources Inc. is actively targeting copper-rich mineral deposits, given copper's compelling supply-demand fundamentals and outlook for strong long-term prices as a critical metal for global electrification and energy transition. The Company's flagship Escacena Project is located in the prolific Iberian Pyrite Belt in southern Spain, where a favourable permitting track record, excellent infrastructure, mining and professional expertise, and support for copper as a Strategic Raw Material by the European Commission collectively define a tier-one jurisdiction for mining investment. The Pan Global team comprises proven talent in exploration, discovery, development, and mine operations - all of which are committed to operating safely and with utmost respect for the environment and our partnered communities. The Company is a member, and operates under the principles, of the United Nations Global Compact.

Qualified Persons

Álvaro Merino, Vice President Exploration for Pan Global Resources and a qualified person as defined by National Instrument 43-101, has approved the scientific and technical information for this media release. Mr. Merino is not independent of the Company.

Forward-looking statements

Statements which are not purely historical are forward-looking statements, including any statements regarding beliefs, plans, expectations, or intentions regarding the future. It is important to note that actual outcomes and the Company's actual results could differ materially from those in such forward-looking statements. The Company believes that the expectations reflected in the forward-looking information included in this media release are reasonable, but no assurance can be given that these expectations will prove to be correct and such forward-looking information should not be unduly relied upon. Risks and uncertainties include, but are not limited to, economic, competitive, governmental, environmental, and technological factors that may affect the Company's operations, markets, products, and prices. Readers should refer to the risk disclosures outlined in the Company's Management Discussion and Analysis of its audited financial statements filed with the British Columbia Securities Commission.

The forward-looking information contained in this media release is based on information available to the Company as of the date of this media release. Except as required under applicable securities legislation, the Company does not intend, and does not assume any obligation, to update this forward-looking information.

NEITHER TSX VENTURE EXCHANGE NOR ITS REGULATION SERVICES PROVIDER (AS THAT TERM IS DEFINED IN THE POLICIES OF THE TSX VENTURE EXCHANGE) ACCEPTS RESPONSIBILITY FOR THE ADEQUACY OR ACCURACY OF THIS RELEASE.

Jason Mercier, VP Investor Relations and Communications, jason@panglobalresources.com / investors@panglobalresources.com, Tel: +1-778-372-7101 / +1-604-689-9930, www.panglobalresources.com

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