# US Copper Corp Initiates an Updated Preliminary Economic Assessment on Entire Moonlight-Superior Project Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/us-copper-corp-initiates-an-updated-preliminary-economic-assessment-on-entire-mo--84ac170c-96f5-4d20-857f-a9ea4a882157 Original source: https://money.tmx.com/en/quote/USCU/news/5819717521442227/us-copper-corp-initiates-an-updated-preliminary-economic-assessment-on-entire-mo Publisher: tmx Original announcement: 2024-08-08T12:09:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: US Copper Corp - Ticker: USCU - Exchange: TSX - Region: Northeast California - Primary commodity: Copper - Secondary commodities: Silver - Document categories: Resource update, Economic study - Extracted: 2026-09-19 04:53:52 UTC Narrative sentiment: 0.40 · Bullish ## Minestarters Atlas summary US Copper Corp has engaged Global Resource Engineering to conduct an updated Preliminary Economic Assessment \(PEA\) for the entire Moonlight-Superior Copper Project in California. The study will integrate multiple deposits and newly identified oxide resources, aiming to build upon the 2018 stand-alone Moonlight PEA. Reasoning: The company is advancing its project by initiating a comprehensive PEA that integrates multiple deposits and newly defined oxide resources, building on a previous stand-alone study. - Positive factor: Initiation of updated PEA covering entire project - Positive factor: Recent drilling to convert resources and define oxide caps - Positive factor: Historical positive economics at Moonlight deposit - Negative factor: Upcoming PEA results are still pending Facts used in scoring: 6 ## Classification and evidence **PEA Only** Polarity: neutral Definition: Only Class 4 / Initial Assessment economics available. Not bankable. Why it applies: The announcement focuses on the initiation of an updated Preliminary Economic Assessment. Evidence · text > retained Global Resource Engineering... to complete a Preliminary Economic Assessment \(" PEA "\) **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: The document discusses the upcoming update of NI 43-101 resources for Engels and Superior. Evidence · text > These soon to be updated Engels and Superior NI-43-101 resources will provide the data for a revised PEA ## Extracted facts Stored fact records: 5. Some facts used in scoring do not have a stored record. ## Resource Estimates (5) ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/us-copper-corp-initiates-an-updated-preliminary-economic-assessment-on-entire-mo--84ac170c-96f5-4d20-857f-a9ea4a882157#fact-resource-facts-1) Moonlight · copper Historical result Needs review: historical\_restatement #### Identity - Project: Moonlight - Commodity: copper - Region: northeast california - Reported Region: Northeast California - Ticker: USCU #### Resource scope - Estimate type: resource - Resource group id: resource:a8e89b6212a821982a1d #### Resource Data - Category: indicated - Tonnes: 154000000 - Grade: 0.25 - Grade Unit: % #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2018-04-12T00:00:00.000Z #### Dates - Event date: 2024-08-08T00:00:00.000Z Reasoning: Historical indicated resource for Moonlight sulfide deposit. Evidence · text > Moonlight sulfide deposit hosts a current NI 43-101 indicated resource of approximately 252 million tons \(154 million tonnes\) averaging 0.25% copper #### Tags used in scoring **Indicated Resource** Polarity: positive Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. Why it applies: category is "indicated" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **No Contained Metal** Polarity: negative Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting. Why it applies: contained\_metal was not reported **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 6.3 years before this release ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/us-copper-corp-initiates-an-updated-preliminary-economic-assessment-on-entire-mo--84ac170c-96f5-4d20-857f-a9ea4a882157#fact-resource-facts-2) Moonlight · silver Historical result Needs review: historical\_restatement #### Identity - Project: Moonlight - Commodity: silver - Region: northeast california - Reported Region: Northeast California - Ticker: USCU #### Resource scope - Estimate type: resource - Resource group id: resource:a8e89b6212a821982a1d #### Resource Data - Category: indicated - Tonnes: 154000000 - Grade: 0.07 - Grade Unit: oz/t #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2018-04-12T00:00:00.000Z #### Dates - Event date: 2024-08-08T00:00:00.000Z Reasoning: Historical indicated resource for Moonlight sulfide deposit \(silver\). Evidence · text > 252 million tons \(154 million tonnes\) averaging 0.25% copper and 0.07 oz/silver per ton #### Tags used in scoring **Indicated Resource** Polarity: positive Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. Why it applies: category is "indicated" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **No Contained Metal** Polarity: negative Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting. Why it applies: contained\_metal was not reported **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 6.3 years before this release ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/us-copper-corp-initiates-an-updated-preliminary-economic-assessment-on-entire-mo--84ac170c-96f5-4d20-857f-a9ea4a882157#fact-resource-facts-3) Moonlight · copper Historical result Needs review: historical\_restatement #### Identity - Project: Moonlight - Commodity: copper - Region: northeast california - Reported Region: Northeast California - Ticker: USCU #### Resource scope - Estimate type: resource - Resource group id: resource:dc06ecad274bb3122b3d #### Resource Data - Category: inferred - Tonnes: 62000000 - Grade: 0.24 - Grade Unit: % #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2018-04-12T00:00:00.000Z #### Dates - Event date: 2024-08-08T00:00:00.000Z Reasoning: Historical inferred resource for Moonlight sulfide deposit. Evidence · text > inferred resource of 109 million tons \(62 million tonnes\) averaging 0.24% copper #### Tags used in scoring **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: category is "inferred" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **No Contained Metal** Polarity: negative Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting. Why it applies: contained\_metal was not reported **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 6.3 years before this release ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/us-copper-corp-initiates-an-updated-preliminary-economic-assessment-on-entire-mo--84ac170c-96f5-4d20-857f-a9ea4a882157#fact-resource-facts-4) Moonlight · silver Historical result Needs review: historical\_restatement #### Identity - Project: Moonlight - Commodity: silver - Region: northeast california - Reported Region: Northeast California - Ticker: USCU #### Resource scope - Estimate type: resource - Resource group id: resource:dc06ecad274bb3122b3d #### Resource Data - Category: inferred - Tonnes: 62000000 - Grade: 0.08 - Grade Unit: oz/t #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2018-04-12T00:00:00.000Z #### Dates - Event date: 2024-08-08T00:00:00.000Z Reasoning: Historical inferred resource for Moonlight sulfide deposit \(silver\). Evidence · text > inferred resource of 109 million tons \(62 million tonnes\) averaging 0.24% copper and 0.08 oz/silver per ton #### Tags used in scoring **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: category is "inferred" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **No Contained Metal** Polarity: negative Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting. Why it applies: contained\_metal was not reported **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 6.3 years before this release ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/us-copper-corp-initiates-an-updated-preliminary-economic-assessment-on-entire-mo--84ac170c-96f5-4d20-857f-a9ea4a882157#fact-resource-facts-5) Superior · copper Historical result Needs review: historical\_restatement #### Identity - Project: Superior - Commodity: copper - Region: northeast california - Reported Region: Northeast California - Ticker: USCU #### Resource scope - Estimate type: resource - Resource group id: resource:473130ee36f8d41e7331 #### Resource Data - Category: inferred - Tonnes: 57000000 - Grade: 0.41 - Grade Unit: % #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes #### Dates - Event date: 2024-08-08T00:00:00.000Z Reasoning: Historical inferred resource for Superior deposit. Evidence · text > Superior deposit... hosts a current NI 43-101 inferred mineral resource of 57 million metric tonnes at an average copper grade of 0.41% #### Tags used in scoring **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: category is "inferred" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **No Contained Metal** Polarity: negative Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting. Why it applies: contained\_metal was not reported ## 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.