# BacTech Signs Agreement with Di-As to Evaluate BACOX® Bioleaching of Historic Tailings in Kazakhstan Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/bactech-signs-agreement-with-di-as-to-evaluate-bacox-bioleaching-of-historic-tai--e3ea31d6-f42a-43b7-9a48-ebf80da3d4a8 Original source: https://www.thenewswire.com/press-releases/1k98Fql0Z-bactech-signs-agreement-with-di-as-to-evaluate-bacox-r-bioleaching-of-historic-tailings-in-kazakhstan.html Publisher: thenewswire Original announcement: 2026-09-01T14:47:19.993Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: BacTech Environmental Corporation - Ticker: BAC - Exchange: Unavailable - Region: East Kazakhstan - Primary commodity: Gold - Secondary commodities: Silver, Zinc, Lead, Copper - Document categories: Metallurgy, Agreement transaction - Extracted: 2026-09-01 14:50:44 UTC Narrative sentiment: 0.40 · Bullish ## Minestarters Atlas summary BacTech has signed a technical consulting and testing agreement with Di-As Company Ltd. to evaluate its BACOX® bioleaching technology on historic sulphide tailings in Kazakhstan. The US$350,000–$425,000 program will be conducted in three stages, focusing on gold and silver recovery and arsenic stabilization. Reasoning: BacTech has secured a funded metallurgical testing program to evaluate its proprietary bioleaching technology on historic tailings, though the project's scale depends on unverified historical estimates. - Positive factor: funded by third party - Positive factor: staged approach reduces risk - Positive factor: proprietary technology application - Negative factor: reliance on unverified historical data - Negative factor: no current NI 43-101 resource Facts used in scoring: 4 ## Classification and evidence **No QA/QC Disclosure** Polarity: negative Story-specific tag Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: The historical estimate mentioned is not verified by a QP and lacks current QA/QC documentation. Evidence · text > The Qualified Person has not independently verified the historical estimate or all of the historical sampling, analytical, density and estimation information underlying it. **Bench Scale Only** Polarity: negative Definition: Only preliminary bench tests completed — no locked-cycle or pilot work. Why it applies: The announced program is specifically described as bench-scale testing. Evidence · text > Representative material will undergo bench-scale biological oxidation testing ## Extracted facts Stored fact records: 4. Some facts used in scoring do not have a stored record. ## Metallurgical Results (4) ### Fact 1 [Link to this fact](https://atlas-staging.minestarters.com/news/bactech-signs-agreement-with-di-as-to-evaluate-bacox-bioleaching-of-historic-tai--e3ea31d6-f42a-43b7-9a48-ebf80da3d4a8#fact-metallurgical-facts-0) gold Historical result Needs review: historical\_restatement #### Identity - Commodity: gold - Ticker: BAC #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2022-01-02T00:00:00.000Z #### Dates - Event date: 2026-09-01T00:00:00.000Z Reasoning: Historical estimate of gold content in tailings. - Negative factor: historical estimate - Negative factor: not NI 43-101 compliant ### Fact 2 [Link to this fact](https://atlas-staging.minestarters.com/news/bactech-signs-agreement-with-di-as-to-evaluate-bacox-bioleaching-of-historic-tai--e3ea31d6-f42a-43b7-9a48-ebf80da3d4a8#fact-metallurgical-facts-1) silver Historical result Needs review: historical\_restatement #### Identity - Commodity: silver - Ticker: BAC #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2022-01-02T00:00:00.000Z #### Dates - Event date: 2026-09-01T00:00:00.000Z Reasoning: Historical estimate of silver content in tailings. - Negative factor: historical estimate - Negative factor: not NI 43-101 compliant ### bench-scale biological oxidation [Link to this fact](https://atlas-staging.minestarters.com/news/bactech-signs-agreement-with-di-as-to-evaluate-bacox-bioleaching-of-historic-tai--e3ea31d6-f42a-43b7-9a48-ebf80da3d4a8#fact-metallurgical-facts-2) gold #### Identity - Commodity: gold - Ticker: BAC #### Test Work - Program Status: preliminary - Test Type: bench-scale biological oxidation - Processing Route: biological oxidation - Sample: Staroe tailings facility physical samples #### Lab - Laboratory: ALS Laboratories #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-01T00:00:00.000Z Reasoning: Planned metallurgical testwork using BACOX technology. - Positive factor: accredited laboratory - Negative factor: bench-scale only ### bioleaching [Link to this fact](https://atlas-staging.minestarters.com/news/bactech-signs-agreement-with-di-as-to-evaluate-bacox-bioleaching-of-historic-tai--e3ea31d6-f42a-43b7-9a48-ebf80da3d4a8#fact-metallurgical-facts-3) #### Identity - Ticker: BAC #### Test Work - Program Status: preliminary - Test Type: bioleaching #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-01T00:00:00.000Z Reasoning: Agreement to test proprietary bioleaching technology. - Positive factor: proprietary technology ## 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.