# CYM: Heap Leach Commissioning Update Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/cym-heap-leach-commissioning-update--6977a5c8-de53-4358-831f-e30a6a669c78 Original source: https://www.asx.com.au/asx/v2/statistics/displayAnnouncement.do?display=pdf&idsId=03150423 Publisher: asx Original announcement: 2026-10-08T21:53:00.000Z Analysis by Minestarters Atlas Atlas analysis published: 2026-10-08T22:10:42.535Z Atlas analysis updated: 2026-10-08T22:10:42.535Z - Company: Cyprium Metals Limited - Ticker: CYM - Exchange: ASX - Region: Western Australia - Primary commodity: Copper - Secondary commodities: None reported - Document categories: Metallurgy, Other - Extracted: 2026-10-08 22:10:43 UTC Narrative sentiment: 0.80 · Bullish ## Minestarters Atlas summary Cyprium Metals has achieved key commissioning milestones for the heap leach restart at the Nifty Copper Complex, including successful direct injection leaching. Early results show copper production and acid consumption are in line with modelled assumptions, with SXEW plant commissioning on track for Q4 2026. Reasoning: The announcement reports successful early-stage commissioning of the heap leach at Nifty, with copper-to-acid ratios and injection volumes meeting technical expectations. - Positive factor: successful commissioning milestones achieved - Positive factor: leach chemistry in line with expected models - Positive factor: grade control drilling validates resource model - Positive factor: infrastructure for SXEW is nearing completion Facts used in scoring: 2 ## Classification and evidence **Mill Route** Polarity: neutral Definition: Processing via mill or concentrator \(CIL, CIP, tank leach, flotation\). Why it applies: The project is utilizing a heap leach and SXEW processing route. Evidence · text > heap leach area is ramping steadily towards operations **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: the document describes a heap\_leach route \("heap leach"\) **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) ### direct injection leaching [Link to this fact](https://atlas-staging.minestarters.com/news/cym-heap-leach-commissioning-update--6977a5c8-de53-4358-831f-e30a6a669c78#fact-metallurgical-facts-0) Nifty Copper Complex · copper #### Identity - Project: Nifty Copper Complex - Commodity: copper - Region: australia\_wa - Reported Region: Western Australia - Ticker: CYM #### Test Work - Program Status: optimization - Test Type: direct injection leaching - Processing Route: heap leach - Sample: initial leaching activities \(Block 1 production area\) #### Recovery - Recovery Basis: unspecified #### Reagents - Acid: 4.25 kg/t - Reagent Notes: free acid consumption averaging 4.25 grams per litre in the initial results; copper-to-acid ratio is 1 : 4.25 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Early commissioning data validates the expected leach chemistry and acid consumption rates. - Positive factor: acid consumption aligns with baseline assumptions - Positive factor: copper-to-acid ratio is in line with or better than modelled assumptions Evidence · text > free acid consumption averaging 4.25 grams per litre in the initial results \(which is aligned to baseline assumptions\) #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal ### direct injection leaching [Link to this fact](https://atlas-staging.minestarters.com/news/cym-heap-leach-commissioning-update--6977a5c8-de53-4358-831f-e30a6a669c78#fact-metallurgical-facts-1) Nifty Copper Complex · copper #### Identity - Project: Nifty Copper Complex - Commodity: copper - Region: australia\_wa - Reported Region: Western Australia - Ticker: CYM #### Test Work - Program Status: optimization - Test Type: direct injection leaching - Processing Route: heap leach - Sample: off-flow solution \(ILS\) #### Recovery - Recovery Basis: unspecified #### Reagents - Reagent Notes: copper concentration of the off-flow solution is increasing by roughly 1 gram per litre, to approximately 1.3 grams per litre #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: The increasing copper concentration in the intermediate leach solution \(ILS\) confirms the leaching process is working towards target grades. - Positive factor: copper concentration is increasing as expected - Positive factor: grade is approaching target for SXEW Evidence · text > copper concentration of the off-flow solution is increasing by roughly 1 gram per litre, to approximately 1.3 grams per litre #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal ## 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.