Capstone Copper Corp. Corrects October Appendix 4A, Revises Common Shares on Issue to 556,363,685

Anjali Anand

09 November 2026 03:33 PM AEDT

Capstone Copper Corp. Corrects October Appendix 4A, Revises Common Shares on Issue to 556,363,685

Image Source: Krish Capital Pty Ltd

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Capstone Copper Corp. (ASX:CSC) has filed a correction to its Appendix 4A originally released on 4 October 2026, disclosing that the previously reported figure of 766,250,210 common shares on issue was incorrect and should be 556,363,685 common shares.

Key Points

The Appendix 4A released on 4 October 2026 incorrectly reported 766,250,210 common shares on issue; the correct figure is 556,363,685.
The error arose because 209,886,525 CDIs issued over quoted securities were inadvertently included in the common shares count, resulting in double counting.
A revised Appendix 4A disclosing the correct figures was appended to the correction filing dated 7 November 2026.
The corrected filing covers the statement month of September 2026, with CDIs on issue at 209,886,525 at end of that month.

Nature of the Reporting Error in the October Appendix 4A

According to the filing dated 7 November 2026, the Appendix 4A lodged on 4 October 2026 inadvertently included 209,886,525 CDIs issued over quoted securities within the common shares on issue figure. This resulted in double counting, inflating the reported total to 766,250,210 common shares. The correct number of common shares on issue is 556,363,685. The correction was authorised for release by Wendy King, Senior Vice President, Risk, ESG and General Counsel of Capstone Copper Corp.

Revised CDI and Securities Figures for September 2026

The revised Appendix 4A covers the statement month of September 2026. It discloses 209,886,525 CDIs (ASX code: CSC, ratio 1:1) issued over quoted securities at the end of that month, compared with 211,643,958 at the end of the previous month. Common shares on issue (ASX code: CSCAD) are reported at 556,363,685 at month end, compared with 766,042,477 at the end of the prior month. Stock options (ASX code: CSCAA) stood at 3,759,638, down from 3,841,489 the previous month.

Treasury Share Units and Additional Securities Disclosed

The revised filing also discloses Treasury Share Units (ASX code: CSCAB) totalling 4,851,316 at the end of September 2026, compared with 4,977,286 at the end of the prior month, reflecting a net difference of -125,970. Capstone Copper Corp. is incorporated in British Columbia, Canada, and is dual-listed on the Toronto Stock Exchange and ASX. The correction filing was lodged on 7 November 2026 as an update to the previous Appendix 4A announcement dated 4 October 2026.

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