CSA proposes changes to disclosure rules for miners

By James Langton | June 13, 2025 | Last updated on June 13, 2025
2 min read
CSA proposes changes to disclosure rules for miners
iStock / Murphy Shewchuk

In an effort to reduce compliance costs for the mining industry — and enhance investor insight — the Canadian Securities Administrators (CSA) is proposing a series of reforms designed to streamline and modernize disclosure requirements for the sector.

The CSA launched a consultation Thursday on the proposed changes, which aim to address evolving industry disclosure practices and to better match the requirements with industry and investor expectations.

The proposals remove or update certain definitions from the rules, scrap certain outdated disclosure requirements, and streamline other requirements.   

The proposals follow a consultation carried out by the CSA in 2022, which attracted significant feedback.

Now, in a notice spelling out the proposals, the CSA said that it expects the proposed changes to reduce compliance costs for mining issuers. In addition, they they could potentially improve issuers’ ability to better assess risk and opportunities by providing mining companies with greater regulatory certainty and clarity, and harmonizing the CSA’s requirements with international expectations.

For investors and financial advisors, the reforms are intended to provide them with more useful information on mining issuers’ projects — which should help investors make more informed investment decisions.

“This in turn will potentially reduce the cost of capital and enhance capital formation,” the CSA noted.

“Our goal is to provide investors with clear, reliable information about mineral projects so they can make informed decisions, without imposing an undue regulatory burden on mining issuers,” said Stan Magidson, chair of the CSA and chair and CEO of the Alberta Securities Commission (ASC), in a release.

“By modernizing and streamlining the disclosure regime, we aim to maintain Canada’s position as the global standard for mining disclosure,” he added.

While the proposals are expected to curb compliance costs for mining issuers on an ongoing basis, implementing the new disclosure rules will impose upfront costs.

For instance, in a cost-benefit analysis accompanying the proposal, the Ontario Securities Commission (OSC) estimates that the changes will provide Ontario-based mining issuers with annual cost savings of between $1 million and $1.7 million — although they will also face one-time transition costs of between $1.2 million and $2.6 million to implement the changes. (However, only 21% of mining issuers in Canada have the OSC as their principal regulator; 70% are regulated by the British Columbia Securities Commission.)

The proposals are being published for a 120-day comment period, ending Oct. 10.

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James Langton

James is a senior reporter for Advisor.ca and its sister publication, Investment Executive. He has been reporting on regulation, securities law, industry news and more since 1994.