# Mammoth Announces Gold Recoveries Of 87% From Bottle Roll Tests On Coarser-Fraction Material From The Large Carneritos Area On Its Tenoriba Gold-Silver Property, Mexico Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/mammoth-announces-gold-recoveries-of-87-from-bottle-roll-tests-on-coarser-fracti--aa91caf5-fab3-4a73-aae8-6d2c694e007e Original source: https://money.tmx.com/en/quote/MTH/news/6125087818468589/mammoth-announces-gold-recoveries-of-87-from-bottle-roll-tests-on-coarser-fracti Publisher: tmx Original announcement: 2026-02-05T18:30:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Mammoth Resources Corp. - Ticker: MTH - Exchange: TSX - Region: Chihuahua State, Mexico - Primary commodity: Gold - Secondary commodities: Silver - Document categories: Metallurgy - Extracted: 2026-09-18 11:01:52 UTC Narrative sentiment: 0.80 · Bullish ## Minestarters Atlas summary Mammoth Resources Corp. announced successful gold \(87%\) and silver \(67%\) recoveries from bottle roll tests on a coarse-grained \(-10 mesh\) oxidized composite sample from the Carneritos area of the Tenoriba project. The results, achieved with low cyanide consumption, support the potential for future heap leach processing of near-surface material. Reasoning: The release reports strong gold and silver recoveries from a significantly coarser fraction of material, which is a positive indicator for future heap leach processing. - Positive factor: High gold recovery \(87%\) on coarse fraction - Positive factor: Favourable comparison to fine-fraction testing - Positive factor: Low cyanide consumption \(0.2 kg/t\) - Positive factor: QA/QC and QP sign-off disclosed - Negative factor: Higher end of average CaO consumption \(3.8 kg/t\) Facts used in scoring: 2 ## Classification and evidence **High Recovery** Polarity: positive Definition: Recovery at or above the exceptional band for the commodity and processing route. Why it applies: Gold recovery of 87% is in the strong/exceptional band for gold cyanide leach. Evidence · text > Gold dissolution recovery... is 87% **Free Milling** Polarity: positive Definition: Simple, clean ore amenable to standard processing without oxidation. Why it applies: Material is described as oxidized near-surface material with favourable leaching kinetics. Evidence · text > oxidized near-surface gold-silver mineralized material **QA/QC Disclosed** Polarity: positive Story-specific tag Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: Release names a Qualified Person \(Richard Simpson\) and a metallurgical QP \(German Alarcon\) and mentions SGS laboratory. Evidence · text > supervised by German Alarcon, SGS de Mexico S.A de C.V metallurgist and a qualified person. **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: The company explicitly discusses the results in the context of future heap leach testing. Evidence · text > bode well for the ability to recover gold and silver through heap leach processing **Single Domain Only** Polarity: negative Definition: Testing limited to one composite or domain — representativeness not established. Why it applies: only one composite was tested ## Extracted facts Stored fact records: 2. Some facts used in scoring do not have a stored record. ## Metallurgical Results (2) ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/mammoth-announces-gold-recoveries-of-87-from-bottle-roll-tests-on-coarser-fracti--aa91caf5-fab3-4a73-aae8-6d2c694e007e#fact-metallurgical-facts-0) Tenoriba · gold #### Identity - Project: Tenoriba - Commodity: gold - Region: mexico - Reported Region: Chihuahua State, Mexico - Ticker: MTH #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: cyanide bottle roll - Sample: coarser fraction composite sample of oxidized near-surface gold-silver mineralized material \(-10 mesh\) #### Recovery - Recovery: 87 % - Recovery Basis: actual\_test - Head Grade: 0.65 - Head Grade Unit: g/t AuEq #### Reagents - Cyanide: 0.2 kg/t - Lime: 3.8 kg/t - Reagent Notes: CaO consumption \(3.8 kg/t\) is considered on the higher end of average. #### Lab - Laboratory: SGS Laboratory - Consultant: SGS de Mexico S.A de C.V #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-02-05T00:00:00.000Z Reasoning: Strong gold recovery on coarse material is a key de-risking step for heap leach. - Positive factor: 87% recovery on coarse fraction - Negative factor: High CaO consumption Evidence · text > Gold dissolution recovery... is 87% ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/mammoth-announces-gold-recoveries-of-87-from-bottle-roll-tests-on-coarser-fracti--aa91caf5-fab3-4a73-aae8-6d2c694e007e#fact-metallurgical-facts-1) Tenoriba · silver #### Identity - Project: Tenoriba - Commodity: silver - Region: mexico - Reported Region: Chihuahua State, Mexico - Ticker: MTH #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: cyanide bottle roll - Sample: coarser fraction composite sample of oxidized near-surface gold-silver mineralized material \(-10 mesh\) #### Recovery - Recovery: 67 % - Recovery Basis: actual\_test - Head Grade: 0.65 - Head Grade Unit: g/t AuEq #### Reagents - Cyanide: 0.2 kg/t - Lime: 3.8 kg/t - Reagent Notes: CaO consumption \(3.8 kg/t\) is considered on the higher end of average. #### Lab - Laboratory: SGS Laboratory - Consultant: SGS de Mexico S.A de C.V #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-02-05T00:00:00.000Z Reasoning: Silver recovery is consistent with previous fine-fraction testing. - Positive factor: 67% silver recovery Evidence · text > silver recovery is 67% #### Tags used in scoring **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: 67% is below the weak band \(75%\) ## How Atlas produces this analysis Minestarters Atlas uses automated extraction to summarize mining announcements, identify reported measurements, and classify supporting evidence. Sentiment reflects the extracted narrative and classification rules; it is an interpretation, not a reported measurement. Evidence quotes and context are provided where available. Missing data, low-confidence results, and review flags indicate limitations. Check the original publisher announcement before relying on an interpretation.