| 03-27-2024 - Annual Verification of the Mines and Geosciences Bureau |
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| 10-06-2023 - Other SEC Forms, Reports and Requirements |
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| 08-22-2023 - Other SEC Forms, Reports and Requirements |
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| 08-30-2023 - Other SEC Forms, Reports and Requirements |
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| 04-14-2023 - [Amend-1]Other SEC Forms, Reports and Requirements |
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| 03-27-2023 - Annual Verification of the Mines and Geosciences Bureau |
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| 09-12-2022 - Other SEC Forms, Reports and Requirements |
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| 8-30-2022 - Other SEC Forms, Reports and Requirements |
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| 08-30-2022 - Other SEC Forms, Reports and Requirements |
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| 10-5-2021 - Other SEC Forms, Reports and Requirements |
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| 09-07-2021 - Other SEC Forms, Reports and Requirements |
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| 03-02-2021 - Annual Verification of the Mines and Geosciences Bureau |
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| 1-14-2021 - Other SEC Forms, Reports and Requirements |
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| 07-22-2020 - Other SEC Forms, Reports and Requirements |
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| 07-10-2020 - Other SEC Forms, Reports and Requirements |
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| 02-11-2020 - Other SEC Forms, Reports and Requirements |
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| 1-28-2020 - Annual Verification of the Mines and Geosciences Bureau |
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| 12-19-2019 - Other SEC Forms, Reports and Requirements |
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| 11-12-2019 - Other SEC Forms, Reports and Requirements |
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| 06-11-2019 - [Amend-1]Annual Verification of the Mines and Geosciences Bureau |
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| 02-07-2019 - Annual Verification of the Mines and Geosciences Bureau |
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| 11-23-2018 - Other SEC Forms, Reports and Requirements |
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| 09-05-2018 - Other SEC Forms, Reports and Requirements |
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| 8-24-2018 - Other SEC Forms, Reports and Requirements |
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| 02-21-2017 Other SEC Forms, Reports and Requirements |
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| 06.01.2017 Other SEC Forms, Reports and Requirements |
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| 03-20-2017 Compliance Report on Corporate Governance |
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| 03-01-2017 Annual Verification of the Mines and Geosciences Bureau |
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| 02-03-2017 Voluntary Trading Halt |
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| 10-18-2016 Other SEC Forms, Reports and Requirements |
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| 12-16-2016 Voluntary Trading Halt |
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| 09-29-2016 Other SEC Forms, Reports and Requirements |
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| 09-07-2016 Other SEC Forms, Reports and Requirements_ccz |
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| 09-06-2016 Other SEC Forms, Reports and Requirements_mut |
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| 08-23-2016 Other SEC Forms, Reports and Requirements |
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| 06-14-2016 Other SEC Forms, Reports and Requirements |
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| 05-31-2016 Other SEC Forms, Reports and Requirements |
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| 05-31-2016 Other SEC Forms, Reports and Requirements puno |
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| 05-31-2016 Other SEC Forms, Reports and Requirements lazaro |
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| 04-01-2016 Compliance Report on Corporate Governance |
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| 03-16-2016 Form 17-14 - Annual Verification of the Mines and Geosciences Bureau |
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| 11-11-2015 PSE Disclosure Form 17-18 Advisement Letter Regarding Attendance of Corporate Governance Seminar |
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| 11-04-2015 Form 17-18 - Other SEC Forms_Reports_Requirements Advisement Letter |
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| 08-11-2015 Form 17-18 - Other SEC Forms_Reports_Requirements Advisement Letter |
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| 08-06-2015 Form 17-18 - Other SEC Forms_Reports_Requirements -Advisement |
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| 06-29-2015 Form 17-18 - Other SEC Forms_Reports_Requirements-GIS |
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| 06-01-2015 Form 17-18 - Other SEC Forms_Reports_Requirements |
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| 03-31-2015 Form CGR-1 - Compliance Report on Corporate Governance |
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| 03-04-2015 Form 17-14 - Annual Verification of the Mines and Geosciences Bureau (5094) OK |
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| 02-04-2015 Form 17-18 - Other SEC Forms_Reports_Requirements (5091) ok |
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| 01-06-2015 Form 17-18 - Other SEC Forms_Reports_Requirements (uploaded 02-23-17) - 5980 |
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| 12-29-2014 Form 17-8 - Report by Owner of More Than Five Percent |
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| 12-23-2014 Form 17-18 - Other SEC FormsReportsRequirements |
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| 12-09-2014 Form 17-18 - Other SEC FormsReportsRequirements |
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| 11-28-2014 Form 17-18 - Other SEC FormsReportsRequirements OZAETA |
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| 11-26-2014 Form 17-18 - Other SEC Forms Reports Requirements CTO |
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