Ivanhoe Mines Announces Exercise in Full of Over-Allotment Option Increasing the Size of the Offering of Convertible Senior Notes to US$575,000,000

Ivanhoe Mines (TSX: IVN) (OTCQX: IVPAF) (the "company") today announced that the initial purchasers in its previously announced private placement offering of US$500,000,000 aggregate principal amount of 2.50% convertible senior notes due 2026 (the "Notes" and the "Offering") have exercised, in full, their option to purchase up to an additional US$75,000,000 aggregate principal amount of Notes, bringing the total Offering size to US$575,000,000. The Offering, including the additional Notes, is expected to close on or about March 17, 2021, subject to various closing conditions, including the approval of the Toronto Stock Exchange.

The Notes are senior unsecured obligations of the company which will accrue interest payable semi-annually in arrears at a rate of 2.50% per annum and will mature on April 15, 2026, unless earlier repurchased, redeemed or converted. The initial conversion rate of the Notes is 134.5682 Class A common shares of the company ("Common Shares") per US$1,000 principal amount of Notes, or an initial conversion price of approximately US$7.43 (equivalent to approximately C$9.31) per Common Share.

The Notes will be convertible at the option of holders, prior to the close of business on the business day immediately preceding October 15, 2025, only under certain circumstances and during certain periods, and thereafter, at any time until the close of business on the second scheduled trading day immediately preceding the maturity date. Upon conversion, the Notes may be settled, at the company's election, in cash, Common Shares or a combination thereof.

The company estimates that the net proceeds from the sale of the Notes (including the additional Notes), after deducting initial purchaser discounts but before deducting the other estimated expenses of the offering, will be approximately US$562 million. The company intends to use the net proceeds from the Offering for general corporate purposes.

The Notes are being offered on a private placement basis and are not being offered by way of a prospectus in Canada. The Notes and the distribution of Common Shares issuable upon conversion of the Notes have not been, and will not be, registered under the U.S. Securities Act of 1933, as amended (the "Securities Act"), or any state securities laws and may not be offered or sold in the United States except pursuant to an exemption from, or in a transaction not subject to, the registration requirements of the Securities Act and the rules promulgated thereunder and applicable state securities laws. The Notes are being offered to persons reasonably believed to be qualified institutional buyers in reliance on Rule 144A under the Securities Act.

This news release does not constitute an offer to sell or a solicitation of an offer to buy the Notes or any other securities and shall not constitute an offer, solicitation or sale in the United States or in any other jurisdiction in which such an offer, solicitation or sale would be unlawful prior to the registration and qualification under the securities laws of such state or jurisdiction. The Offering may be made only by means of an offering memorandum.

About Ivanhoe Mines

Ivanhoe Mines is a Canadian mining company focused on advancing its three principal joint-venture projects in Southern Africa: the development of major new, mechanized, underground mines at the Kamoa-Kakula copper discoveries in the DRC and at the Platreef palladium-platinum-nickel-copper-rhodium-gold discovery in South Africa; and the extensive redevelopment and upgrading of the historic Kipushi zinc-copper-germanium-silver mine, also in the DRC.

Kamoa-Kakula is expected to begin producing copper concentrate in July 2021 and, through phased expansions, is positioned to become one of the world's largest copper producers. Kamoa-Kakula and Kipushi will be powered by clean, renewable hydro-generated electricity and Kamoa-Kakula will be among the world's lowest greenhouse gas emitters per unit of metal produced. Ivanhoe also is exploring for new copper discoveries on its wholly-owned Western Foreland exploration licences in the DRC, near the Kamoa-Kakula Project.

Information contacts

Investors: Bill Trenaman +1.604.331.9834 / Media: Matthew Keevil +1.604.558.1034

Cautionary statement on forward-looking information

Certain statements in this release constitute "forward-looking statements" or "forward-looking information" within the meaning of applicable securities laws. Such statements and information involve known and unknown risks, uncertainties and other factors that may cause the actual results, performance or achievements of the company, its projects, or industry results, to be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements or information. Such statements can be identified by the use of words such as "may", "would", "could", "will", "intend", "expect", "believe", "plan", "anticipate", "estimate", "scheduled", "forecast", "predict" and other similar terminology, or state that certain actions, events or results "may", "could", "would", "might" or "will" be taken, occur or be achieved. These statements reflect the company's current expectations regarding future events, performance and results and speak only as of the date of this release. Such statements include without limitation, the completion of the Offering and the expected use of proceeds therefrom, the acceleration of Phase 3 expansion at the Kamoa-Kakula Project and exploration activities at the Western Forelands Project.

Forward-looking statements and information involve significant risks and uncertainties, should not be read as guarantees of future performance or results and will not necessarily be accurate indicators of whether or not such results will be achieved. A number of factors could cause actual results to differ materially from the results discussed in the forward-looking statements or information, including, but not limited to, risks related to the company's ability to consummate the Offering; the fact that the company's management will have broad discretion in the use of the proceeds from the Offering; unexpected changes in laws, rules or regulations, or their enforcement by applicable authorities; the failure of parties to contracts with the company to perform as agreed; social or labour unrest; changes in commodity prices; and the failure of exploration programs or studies to deliver anticipated results or results that would justify and support continued exploration, studies, development or operations.

Although the forward-looking statements contained in this release are based upon what management of the company believes are reasonable assumptions, there can be no assurance that actual results will be consistent with these forward-looking statements. These forward-looking statements are made as of the date of this release and are expressly qualified in their entirety by this cautionary statement. Subject to applicable securities laws, the company does not assume any obligation to update or revise the forward-looking statements contained herein to reflect events or circumstances occurring after the date of this release.

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