Turquoise Hill Resources Ltd.

Class Action Authorization (Certification) and Proposed Settlement

There is now a proposed settlement of this class proceeding, and the action has been authorized (certified) for settlement purposes only. The Authorization Judgment is available HERE.

A copy of the Settlement Agreement is available here in English and French.

More information about the authorization and proposed settlement of this action is available here in both long-form (English and French) and short-form (English and French).

The proposed plan to allocate and distribute the settlement amount (should it be approved by the Court) is available here in English and French.

To opt out (exclude yourself) from this authorized class action, please fill out the following form in English or French, and email the completed form to [email protected]. Completed Opt-Out Forms must be received on or before September 1, 2026 at 11:59 p.m. ET to be valid.

If you want to stay in the class action, you do not have to do anything or pay anything.

If you want to object to or comment on the proposed Settlement, you should submit an objection or comment stating your name, when and how many eligible shares of Turquoise Hill Resources Ltd. (“TRQ”) you acquired during the Class Period, and your comment or the reason for your objection, by email to the Claims Administrator at [email protected]. We ask that your objection or comment be provided by October 2, 2026 at 11:59 p.m. ET. However, you may still attend the Settlement Approval Hearing and voice your objection or comment even if you do not email your objection or comment by this date.

You may obtain further information about the class action and/or the proposed settlement at www.TRQSettlement.com (in English) or www.ReglementTRQ.com (in French). You can also send your questions by emailing [email protected] or calling toll-free 1-888-885-7703.

Summary

This is a proposed securities class action against Turquoise Hill Resources Ltd. and certain of its current and former directors and officers. This class action alleges that Turquoise Hills and the Individual Defendants made misrepresentations and failed to make timely disclosure of material changes with regards to the expected cost and timing for the underground expansion of Turquoise Hill’s Oyu Tolgoi Mine in Mongolia.

Specifically, this lawsuit alleges that Turquoise Hill and the Individual Defendants knew or should have known that the underground expansion of the Oyu Tolgoi Mine would cost over a billion dollars more and take years longer than the Company was publicly representing to investors, because among other reasons, whistleblowers had expressly told Turquoise Hill’s controlling shareholder (Rio Tinto) about the cost overruns and delays.

Class Membership Criteria

This class action is brought on behalf of all persons and entities (except certain Excluded Persons), wherever they may reside or may be domiciled, who during the period of time from July 31, 2018 to and including July 31, 2019 purchased Turquoise Hill’s securities in the secondary market and held some or all of those securities until after July 15, 2019 and/or July 31, 2019, and who either:

1. are or were residents of Canada (regardless over which exchange they acquired their Turquoise Hill securities); or
2. acquired Turquoise Hill’s securities in the secondary market in Canada or elsewhere, other than in the United States.

Register

For the shares purchased during the identified “class period”, those shares are automatically considered to be included within the proceeding. For shares purchased outside of the identified “class period”, those are not automatically included and you may be required to retain your own lawyer.

We welcome you to complete the below form so you can receive future updates about the proceeding. If you invested more than $50,000, in the particular investment, please complete the form and we will contact you within the near future.