First Quantum Minerals Ltd — Declaration of Voting Results & Voting Rights Announcements 2021

May 6, 2021

ANNUAL GENERAL MEETING OF SHAREHOLDERS OF FIRST QUANTUM MINERALS LTD

HELD ON MAY 6, 2021

SCRUTINEER'S FINAL REPORT

SHAREHOLDERS IN PERSON 0 HOLDING 0 SHARES SHAREHOLDERS BY PROXY 109 HOLDING 582,519,893 SHARES TOTAL SHAREHOLDERS 109 HOLDING 582,519,893 SHARES Issued and Outstanding: 690,393,525 Percentage of outstanding shares 84.38% represented at the meeting _______________ Jenny Karim Scrutineer

The figures reported by Computershare in its capacity as Scrutineer represent our tabulation of proxies returned to us by registered shareholders (and voting instruction forms returned directly to us by non-objecting beneficial holders, if applicable) combined with unaudited reports of beneficial holder voting supplied by one or more third parties. As such we are only responsible for and warrant the accuracy of our own tabulation. Computershare is not responsible for and does not warrant the accuracy of the unaudited reports of beneficial holders supplied by third parties.

If Computershare has mailed voting instruction forms directly to non-objecting beneficial holders on behalf of issuers, these have been distributed on the basis of electronic files received by Computershare from intermediaries or their agents. As Computershare has no direct access to intermediary records, Computershare is unable to reconcile the details of nonobjecting beneficial ownership as provided to us with the details of intermediary positions within the records o f the Canadian Depository for Securities. In some cases, insufficient shares may be held within intermediary positions at the Depository as at record date to support the shares represented by voting instruction forms received directly from non-objecting beneficial holders or returned to us by third parties. In these cases, overvoting rules are applied as directly by the Chair.

In addition, acting on the instructions of the Chair of the meeting, we may have included in our report on attendance, the details of beneficial holders attending in person, whose ownership we cannot directly confirm or verify but which may be supported by documentation such as voting instruction form supplied by a third party. In such cases, Computershare makes no warranty or representation as to the accuracy of the numbers included as a result of the instructions from the Chair, delivery of which to Computershare is hereby acknowledged by the recipient of this report, and assumes no liability or responsibility whatsoever for their inclusion in our report as Scrutineer.

FIRST QUANTUM MINERALS LTD ANNUAL GENERAL MEETING OF SHAREHOLDERS HELD ON MAY 6, 2021

REPORT ON BALLOT

MOTION #1 NUMBER OF DIRECTORS

I, the undersigned scrutineer, hereby report that the result of the vote by ballot with respect to the above matter is as follows:

NUMBER OF VOTES

FOR the motion

AGAINST the motion

Total

577,838,847 99.74% 1,505,093 0.26% 579,343,940 100.00%

Jenny Karim Scrutineer

The figures reported by Computershare in its capacity as Scrutineer represent our tabulation of proxies returned to us by registered shareholders (and voting instruction forms returned directly to us by non-objecting beneficial holders, if applicable) combined with unaudited reports of beneficial holder voting supplied by one or more third parties. As such we are only responsible for and warrant the accuracy of our own tabulation. Computershare is not responsible for and does not warrant the accuracy of the unaudited reports of beneficial holders supplied by third parties.

If Computershare has mailed voting instruction forms directly to non-objecting beneficial holders on behalf of issuers, these have been distributed on the basis of electronic files received by Computershare from intermediaries or their agents. As Computershare has no direct access to intermediary records, Computershare is unable to reconcile the details of non-objecting beneficial ownership as provided to us with the details of intermediary positions within the records of the Canadian Depository for Securities. In some cases, insufficient shares may be held within intermediary positions at the Depository as at record date to support the shares represented by voting instruction forms received directly from non-objecting beneficial holders or returned to us by third parties. In these cases, overvoting rules are applied as directed by the Chair.

In addition, acting on the instructions of the Chair of the meeting, we may have included in our report on attendance, the details of beneficial holders attending in person, whose ownership we cannot directly confirm or verify but which may be supported by documentation such as a voting instruction form supplied by a third party. In such cases, Computershare makes no warranty or representation as to the accuracy of the numbers included as a result of the instructions from the Chair, delivery of which to Computershare is hereby acknowledged by the recipient of this report, and assumes no liability or responsibility whatsoever for their inclusion in our report as Scrutineer.

FIRST QUANTUM MINERALS LTD ANNUAL GENERAL MEETING OF SHAREHOLDERS

HELD ON MAY 6, 2021

FINAL REPORT ON BALLOT

MOTION #2 ELECTION OF DIRECTORS

I, the undersigned scrutineer, hereby report that the result of the vote by ballot with respect to the above matter is as follows:

NAME	VOTES IN FAVOR	VOTES WITHHELD
PHILIP K. R. PASCALL	570,512,389	8,831,551
G. CLIVE NEWALL	557,116,381	22,227,559
KATHLEEN A. HOGENSON	573,877,675	5,466,265
PETER ST. GEORGE	525,881,123	53,462,817
ANDREWS B. ADAMS	511,414,919	67,929,021
ROBERT J. HARDING	507,834,893	71,509,047
SIMON J. SCOTT	578,151,239	1,192,701
DR. JOANNE K. WARNER	578,213,033	1,130,907
C. KEVIN MCARTHUR	577,311,858	2,032,082

Jenny Karim Scrutineer

The figures reported by Computershare in its capacity as Scrutineer represent our tabulation of proxies returned to us by registered shareholders (and voting instruction forms returned directly to us by non-objecting beneficial holders, if applicable) combined with unaudited reports of beneficial holder voting supplied by one or more third parties. As such we are only responsible for and warrant the accuracy of our own tabulation. Computershare is not responsible for and does not warrant the accuracy of the unaudited reports of beneficial holders supplied by third parties.

If Computershare has mailed voting instruction forms directly to non-objecting beneficial holders on behalf of issuers, these have been distributed on the basis of electronic files received by Computershare from intermediaries or their agents. As Computershare has no direct access to intermediary records, Computershare is unable to reconcile the details of non-objecting beneficial ownership as provided to us with the details of intermediary positions within the records of the Canadian Depository for Securities. In some cases, insufficient shares may be held within intermediary positions at the Depository as at record date to support the shares represented by voting instruction forms received directly from non-objecting beneficial holders or returned to us by third parties. In these cases, overvoting rules are applied as directed by the Chair.

In addition, acting on the instructions of the Chair of the meeting, we may have included in our report on attendance, the details of beneficial holders attending in person, whose ownership we cannot directly confirm or verify but which may be supported by documentation such as a voting instruction form supplied by a third party. In such cases, Computershare makes no warranty or representation as to the accuracy of the numbers included as a result of the instructions from the Chair, delivery of which to Computershare is hereby acknowledged by the recipient of this report, and assumes no liability or responsibility whatsoever for their inclusion in our report as Scrutineer.

FIRST QUANTUM MINERALS LTD ANNUAL GENERAL MEETING OF SHAREHOLDERS HELD ON MAY 6, 2021

REPORT ON BALLOT

MOTION #3 APPOINTMENT OF AUDITORS

I, the undersigned scrutineer, hereby report that the result of the vote by ballot with respect to the above matter is as follows:

NUMBER OF VOTES

FOR the motion

WITHHELD from the motion

Total

580,746,833 99.70% 1,773,060 0.30% 582,519,893 100.00%

Jenny Karim Scrutineer

The figures reported by Computershare in its capacity as Scrutineer represent our tabulation of proxies returned to us by registered shareholders (and voting instruction forms returned directly to us by non-objecting beneficial holders, if applicable) combined with unaudited reports of beneficial holder voting supplied by one or more third parties. As such we are only responsible for and warrant the accuracy of our own tabulation. Computershare is not responsible for and does not warrant the accuracy of the unaudited reports of beneficial holders supplied by third parties.

If Computershare has mailed voting instruction forms directly to non-objecting beneficial holders on behalf of issuers, these have been distributed on the basis of electronic files received by Computershare from intermediaries or their agents. As Computershare has no direct access to intermediary records, Computershare is unable to reconcile the details of non-objecting beneficial ownership as provided to us with the details of intermediary positions within the records of the Canadian Depository for Securities. In some cases, insufficient shares may be held within intermediary positions at the Depository as at record date to support the shares represented by voting instruction forms received directly from non-objecting beneficial holders or returned to us by third parties. In these cases, overvoting rules are applied as directed by the Chair.

In addition, acting on the instructions of the Chair of the meeting, we may have included in our report on attendance, the details of beneficial holders attending in person, whose ownership we cannot directly confirm or verify but which may be supported by documentation such as a voting instruction form supplied by a third party. In such cases, Computershare makes no warranty or representation as to the accuracy of the numbers included as a result of the instructions from the Chair, delivery of which to Computershare is hereby acknowledged by the recipient of this report, and assumes no liability or responsibility whatsoever for their inclusion in our report as Scrutineer.

FIRST QUANTUM MINERALS LTD ANNUAL GENERAL MEETING OF SHAREHOLDERS HELD ON MAY 6, 2021

REPORT ON BALLOT

MOTION #4 APPROVAL OF EXECUTIVE COMPENSATION

I, the undersigned scrutineer, hereby report that the result of the vote by ballot with respect to the above matter is as follows:

NUMBER OF VOTES

FOR the motion

AGAINST the motion

Total

559,531,562 96.58% 19,812,378 3.42% 579,343,940 100.00%

19,812,378 3.42%

Jenny Karim Scrutineer

The figures reported by Computershare in its capacity as Scrutineer represent our tabulation of proxies returned to us by registered shareholders (and voting instruction forms returned directly to us by non-objecting beneficial holders, if applicable) combined with unaudited reports of beneficial holder voting supplied by one or more third parties. As such we are only responsible for and warrant the accuracy of our own tabulation. Computershare is not responsible for and does not warrant the accuracy of the unaudited reports of beneficial holders supplied by third parties.

If Computershare has mailed voting instruction forms directly to non-objecting beneficial holders on behalf of issuers, these have been distributed on the basis of electronic files received by Computershare from intermediaries or their agents. As Computershare has no direct access to intermediary records, Computershare is unable to reconcile the details of non-objecting beneficial ownership as provided to us with the details of intermediary positions within the records of the Canadian Depository for Securities. In some cases, insufficient shares may be held within intermediary positions at the Depository as at record date to support the shares represented by voting instruction forms received directly from non-objecting beneficial holders or returned to us by third parties. In these cases, overvoting rules are applied as directed by the Chair.

In addition, acting on the instructions of the Chair of the meeting, we may have included in our report on attendance, the details of beneficial holders attending in person, whose ownership we cannot directly confirm or verify but which may be supported by documentation such as a voting instruction form supplied by a third party. In such cases, Computershare makes no warranty or representation as to the accuracy of the numbers included as a result of the instructions from the Chair, delivery of which to Computershare is hereby acknowledged by the recipient of this report, and assumes no liability or responsibility whatsoever for their inclusion in our report as Scrutineer.