CSA Staff Notice 11-345: Extension of Comment Period for Consultation on Regulation 43-101

CSA Staff Notice 11-345 Extension of Comment Period CSA Consultation Paper 43-401 Consultation on Regulation 43-101 respecting Standards of Disclosure for Mineral Projects June 30, 2022 On April 14, 2022, the Canadian Securities Administrators (CSA or we) published for comment CSA Consultation Paper 43-401 Consultation on Regulation 43-101 respecting Standards of Disclosure for Mineral Projects to obtain feedback from stakeholders about the efficacy of several key provisions of Regulation 43-101, priority areas for revision, and whether regulatory changes would address concerns expressed by certain stakeholders. The comment period is scheduled to close on July 13, 2022. As we have received feedback from stakeholders that it would be beneficial to have additional time to properly review and assess the issues outlined in the Consultation Paper and to provide comments, we are extending the comment period from July 13, 2022 to September 13, 2022. Questions If you have any comments or questions, please contact any of the following: Autorité des marchés financiers Marie-Claude Brunet-Ladrie Directrice de la surveillance des émetteurs et initiés, Surintendance des marchés de valeurs 514 395-0337, ext. 4335 marie-claude.brunet-ladrie@lautorite.qc.ca Erika Latourelle-Vigeant Engineer, Direction de la surveillance des émetteurs et initiés 514 395-0337, ext. 4332 erika.latourelle-vigeant@lautorite.qc.ca

Michel Bourque Senior Regulatory Advisor Direction de la surveillance des émetteurs et initiés 514 395-0337, ext. 4466 michel.bourque@lautorite.qc.ca British Columbia Securities Commission Victoria Yehl Manager, Mining 604 899-6519 vyehl@bcsc.bc.ca Darin Wasylik Senior Geologist, Corporate Finance 604 899-6517 dwasylik@bcsc.bc.ca Victoria Steeves Senior Legal Counsel, Corporate Finance 604 899-6791 vsteeves@bcsc.bc.ca Alberta Securities Commission Mikale White Senior Legal Counsel, Corporate Finance 403 355-4344 mikale.white@asc.ca Staci Rollefstad Senior Evaluation Engineer 403 297-4225 staci.rollefstad@asc.ca Ontario Securities Commission Craig Waldie Senior Geologist, Corporate Finance 416 593-8308 cwaldie@osc.gov.on.ca James Whyte Senior Geologist, Corporate Finance 416 593-2168 jwhyte@osc.gov.on.ca Julius Jn-Baptiste Senior Legal Counsel, Corporate Finance 416 595-8939 jjnbaptiste@osc.gov.on.ca Financial Consumer Services Commission, New Brunswick Joseph Adair Senior Securities Analyst 866 933-2222 joe.adair@fcnb.ca