# Sitka Reports 94.3% Gold Recovery and 84.7% Tungsten Recovery from Metallurgical Testing at the Rhosgobel Deposit at Its Rc Gold Project, Yukon Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/sitka-reports-94-3-gold-recovery-and-84-7-tungsten-recovery-from-metallurgical-t--4dedd595-5e74-4b83-9fa8-19bcedbabb15 Original source: https://money.tmx.com/en/quote/SIG/news/4612540100117830/sitka-reports-94-3-gold-recovery-and-84-7-tungsten-recovery-from-metallurgical-t Publisher: tmx Original announcement: 2026-05-04T12:30:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Sitka Gold Corp. - Ticker: SIG - Exchange: TSX - Region: Yukon - Primary commodity: Gold - Secondary commodities: Tungsten - Document categories: Metallurgy - Extracted: 2026-09-16 22:48:42 UTC Narrative sentiment: 0.80 · Bullish ## Minestarters Atlas summary Sitka Gold Corp. has reported positive initial metallurgical testwork results from its Rhosgobel deposit at the RC Gold Project in Yukon. Testing achieved an average gold recovery of 94.3% via conventional CIL/CIP leaching and a tungsten recovery of 84.7% via flotation, suggesting tungsten is a viable byproduct. Reasoning: Initial metallurgical testing at Rhosgobel shows robust recoveries for both the primary gold and the tungsten byproduct, supporting the economic potential of the deposit. - Positive factor: High gold recovery \(94.3%\) - Positive factor: Strong tungsten recovery \(84.7%\) - Positive factor: Non-refractory gold mineralization confirmed - Positive factor: Rapid leach kinetics observed - Positive factor: Tungsten identified as a valuable byproduct 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 94.3% is in the exceptional/strong band for CIL/CIP milling routes. Evidence · text > Gold recovery averaging 94.3% from Rhosgobel deposit utilizing conventional whole ore cyanidation leaching **Free Milling** Polarity: positive Definition: Simple, clean ore amenable to standard processing without oxidation. Why it applies: Gold mineralization is explicitly described as non-refractory. Evidence · text > These results demonstrate that the gold mineralization at Rhosgobel is not refractory **Mill Route** Polarity: neutral Definition: Processing via mill or concentrator \(CIL, CIP, tank leach, flotation\). Evidence · text > represents Carbon in Leach \("CIL"\)/Carbon in Pulp \("CIP"\) processes, the most commonly used milling gold recovery method. **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 details laboratory \(ALS\), accreditation \(ISO 17025\), and specific assay methods. Evidence · text > ALS is accredited to ISO 17025:2005 UKAS ref. 4028 **Gravity Route** Polarity: neutral Definition: Gravity separation forms a material part of the flowsheet. Why it applies: the document describes a gravity route \("gravity"\) **Multi-Domain Tested** Polarity: positive Definition: Variability across ore domains \(oxide, transition, fresh\) has been addressed. Why it applies: 2 distinct composites were 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/sitka-reports-94-3-gold-recovery-and-84-7-tungsten-recovery-from-metallurgical-t--4dedd595-5e74-4b83-9fa8-19bcedbabb15#fact-metallurgical-facts-0) RC Gold Project · gold #### Identity - Project: RC Gold Project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon - Ticker: SIG #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: conventional whole ore cyanidation leaching \(CIL/CIP\) - Sample: 6 separate test composites from 2025 Rhosgobel drill core - Grind P80: 75 µm - Leach Time: 48 hours #### Recovery - Recovery: 94.3 % - Recovery Basis: actual\_test #### Lab - Laboratory: Blue Coast Research Ltd. #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-05-04T00:00:00.000Z Reasoning: 94.3% recovery is very strong for a CIL/CIP mill route. - Positive factor: High average recovery - Positive factor: Rapid leach kinetics Evidence · text > Gold recovery averaging 94.3% from Rhosgobel deposit utilizing conventional whole ore cyanidation leaching at a grind size of 75 microns #### Tags used in scoring **Mill Route** Polarity: neutral Definition: Processing via mill or concentrator \(CIL, CIP, tank leach, flotation\). Why it applies: processing\_route matches the mill\_cil signal **Byproduct Commodity** Polarity: neutral Definition: The tested commodity is a byproduct rather than the primary economic driver. Why it applies: the release describes a byproduct credit ### flotation [Link to this fact](https://atlas-extractions.minestarters.com/news/sitka-reports-94-3-gold-recovery-and-84-7-tungsten-recovery-from-metallurgical-t--4dedd595-5e74-4b83-9fa8-19bcedbabb15#fact-metallurgical-facts-1) RC Gold Project · tungsten #### Identity - Project: RC Gold Project - Commodity: tungsten - Region: canada\_yt - Reported Region: Yukon - Ticker: SIG #### Test Work - Program Status: preliminary - Test Type: flotation - Processing Route: rougher flotation - Sample: single master composite from 3 separate core sample intervals from 2025 drilling - Grind P80: 191 µm #### Recovery - Recovery: 84.7 % - Recovery Basis: actual\_test - Mass Pull: 1 % #### Lab - Laboratory: Blue Coast Research Ltd. #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-05-04T00:00:00.000Z Reasoning: 84.7% recovery in a flotation concentrate is a strong result for tungsten byproduct potential. - Positive factor: High recovery for a byproduct - Positive factor: Low mass pull Evidence · text > tungsten recovery of 84.7% in rougher concentrate using conventional flotation with a very low mass pull of less than 1% #### Tags used in scoring **Mill Route** Polarity: neutral Definition: Processing via mill or concentrator \(CIL, CIP, tank leach, flotation\). Why it applies: processing\_route matches the flotation signal **Byproduct Commodity** Polarity: neutral Definition: The tested commodity is a byproduct rather than the primary economic driver. Why it applies: the release describes a byproduct credit ## 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.