공지 • Jan 19
Panthera Resources plc Announces Positive Results from Bido Project in Burkina Faso Panthera Resources Plc announced that positive results have been returned for Reverse Circulation ("RC") drilling samples from the Bido Project in Burkina Faso. The Company has now completed the earn-in obligations at Bido in Burkina Faso and owns an 80% interest in the project. The company's experienced in-country and international geological team have completed systematic geological mapping, data compilation, geochemical and geophysical surveys and interpretation of the database to identify drill targets, some of which represent the priority targets in this round of exploration drilling. This, combined with equipment failure and constraints, led to a very delayed completion of drilling. Based on the results of the 2m samples analysis (analysed at SGS Laboratory in Ouagadougou by a Fire Assay of a 50gm aliquot) received best results of the drilling program. Based on the results of The 2m samples analysis (an analysed at SGS Laboratory in OuAGadougou by a FireAssay of a 50gm alquot) received best results of The drilling program. Based on the Results of the 2m samples analysis. Based on the results Of the 2m samples analysis, data compilation, geochemical, geochemical and geophysical survey and interpretation of the database to identified drill targets, some of which represents the priority targets in this round the round of exploration drilling. This. combined with equipment failure and constraints. This, combined with equipment success and constraints, led to a much delayed completion of drilling. Based On the results of the 2m sample analysis (an analysed at S GS Laboratory in OuagadougOU by a Fire Assay of an 50gm aliquot) receive best results of the drilling program, based on the results of the 2 m samples analysis (an analysed atSGS Laboratory in Ouagadou by a Fire Assay the 50gm aliquot) receiving best results of the drilling program and based on the results of the 2025 drilling program. Based on the data of the 2025 drilling program, HOLE 2 m best intercepts Re-assay (Fire Assay) at 1.27 g/t Au from 56 m and 56 m. KWD25-RC-001, 0.54 g/t Au from 72 m. No chips recovery between 78 m and 80 m. 0 g/t assumed for this interval here although it is in the richer part of the mineralisation. KWD25-RC -001 4 m @ 0.96 g/t from 126 m 4 m @ 0.56 g/t Au from 126 m 2 m at 0.56 g/t from 126 m 2 m @ 0.72 g/t Au from 36 m; KWD25-RC-003 24 m @ 0.61 g/t Au from 18 m incl. 12 m @ 1.2 g/t Au from 26 m; 24 m @ 0.64 g/t Au from 18m incl. 12 m @ 1". 12 m @ 1.03 g/t Au from26 m @ 0.19 g/t Au from 24 m @ 0.16 g/t Au from 24m @ 0.14 g/t Au from24 m KWD25-RC-006 6 m @ 0.13 g/t Au from 34 m 6 m @ 0.20 g/t Au from 44 m 4 m @ 0.43 g/t Au from 44m 4 m @ 0.35 g/t Au from 44M 4 m @ 0.26 g/t Au from 56m. KWD25-RC. 공지 • Nov 22
Panthera Resources Plc Announces Kalaka Metallurgical Study Results Panthera Resources Plc advised that positive results have been returned for CIL bottle roll tests and Column leach tests that have been carried out on bulk composite samples from the Kalaka deposit in Mali. Highlights Results achieved indicate that: The ores are amenable to cyanide leaching. CIL extractions can achieve excellent results - recovery average of 93.4%. Column leach tests confirm the ore is amenable to heap leaching - recovery average of 76.3%. Metallurgical Test Work - Results Bottle roll tests for CIL leaching Tests incorporating a 2-hour Oxygen Conditioning have achieved excellent results. Completed by Intertek on bulk samples of plus 30kg 10mm crush size samples leached over a 90-day period showed an overall performance of: These are reasonable results and suitable for heap leaching. The metallurgical test work was carried out by Intertek, Tarkwa, Ghana. Intertek Group plc is publicly listed on the London Stock exchange and is a FTSE 100 company. The bulk samples were collected under supervision of the company's Manager Mali and shipped to Intertek in Ghana via DHL. The samples upon receipt were registered into Intertek Laboratory management system (MinLims) and sorted. The wet weight of each sample is accurately weighed and recorded, and the samples dried individually at 105degC. After drying, the dry weight of each sample is recorded. The samples were coarse crushed to 10mm using the Boyd crusher and split into 10Kg lots. The 10mm splits will be utilized for the column leach test. Head Grade A 1Kg aliquot is assayed for gold by duplicate 50g fire assay. Standard CIL Test A 1Kg portion of each portion was milled to 80% passing 75mm and leached for 24 hours under the following conditions; Intertek tap water 50% solids; pH 10.5 maintain >10 with quicklime 20g/L carbon; 500ppm NaCN. A subsequent test was completed where the CIL leaching Tests incorporated a 2-hour Oxygen conditioning. Head Sample size by size assay: One of the 5Kg sub splits is taken and split into 1kg lots and subjected to head grade and size by size assay analysis on a 10mm,6.3mm,2.5mm,1mm,300mm,212mm and 150mm screen arrangement. 10-day coarse bottle roll A kilo of the crushed sample is subjected to a 10-day coarse bottle roll to ascertain the leach kinetics and reagent consumption of the sample prior to the column leach. The pH of the pregnant solution is recorded every twenty-four hours and the solution assayed for gold. The final height is marked and recorded, and the column washed thoroughly with water for three days when the leaching is complete (test run for appropriate number of days). The residue is spread and allowed to dry. The volume, pH, Au and NaCN concentration was measured. Tail sample size by size assay The residue after the test is completed and thoroughly washed is assayed for the mineral of interest and a size-by-size assay is conducted on the same set of screens as the head sample. Kalaka Project Background The Company has assembled an extensive and diverse portfolio of gold projects in West Africa, a region that is now the largest gold producing region globally.