Ur-Energy Inc. (NYSE American:URG) (TSX:URE) (the "Company" or "Ur-Energy") is set to join the broad-market Russell 3000® Index at the conclusion of the 2021 Russell indexes annual reconstitution, effective after the U.S. market opens on June 28, 2021 according to a preliminary list of additions made public June 4, 2021.

Annual Russell indexes reconstitution captures the 4,000 largest U.S. stocks as of May 7, ranking them by total market capitalization. Membership in the U.S. all-cap Russell 3000® Index, which remains in place for one year, means automatic inclusion in the large-cap Russell 1000® Index or small-cap Russell 2000® Index as well as the appropriate growth and value style indexes. FTSE Russell determines membership for its Russell indexes primarily by objective, market-capitalization rankings and style attributes.

Ur-Energy Chairman and CEO Jeff Klenda, said, "Ur-Energy is excited to be included in the Russell 3000® Index. This listing reflects the significant increase in our market capitalization over the past several months, and our continued effort to build shareholder value. Inclusion in the Russell 3000® is significant as the Russell indexes are widely followed by the investment community. We believe inclusion in the Russell index provides us with the opportunity to expand our shareholder registry as we continue to progress our strategic initiatives and maintain operational readiness until we ramp-up production operations at our Lost Creek Project."

Russell indexes are widely used by investment managers and institutional investors for index funds and as benchmarks for active investment strategies. Approximately $10.6 trillion in assets are benchmarked against Russell's U.S. indexes. Russell indexes are part of FTSE Russell, a leading global index provider.

FTSE Russell index expertise and products are used extensively by institutional and retail investors globally. Approximately $17.9 trillion is currently benchmarked to FTSE Russell indexes. For over 30 years, leading asset owners, asset managers, ETF providers and investment banks have chosen FTSE Russell indexes to benchmark their investment performance and create ETFs, structured products and index-based derivatives. For more information on the Russell 3000® Index and the Russell indexes reconstitution, go to the "Russell Reconstitution" section on the FTSE Russell website.

About Ur-Energy

Ur-Energy is a uranium mining company operating the Lost Creek in-situ recovery uranium facility in south-central Wyoming. We have produced, packaged, and shipped approximately 2.6 million pounds from Lost Creek since the commencement of operations. Ur-Energy now has all major permits and authorizations to begin construction at Shirley Basin, the Company's second in situ recovery uranium facility in Wyoming and is in the process of obtaining remaining amendments to Lost Creek authorizations for expansion of Lost Creek. Ur‑Energy is engaged in uranium mining, recovery and processing activities, including the acquisition, exploration, development, and operation of uranium mineral properties in the United States. The primary trading market for Ur‑Energy's common shares is on the NYSE American under the symbol "URG." Ur‑Energy's common shares also trade on the Toronto Stock Exchange under the symbol "URE." Ur-Energy's corporate office is located in Littleton, Colorado and its registered office is located in Ottawa, Ontario. Ur-Energy's website is www.ur-energy.com.

FOR FURTHER INFORMATION, PLEASE CONTACT

Jeffrey Klenda, Chairman & CEO
866-981-4588
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Cautionary Note Regarding Forward-Looking Information

This release may contain "forward-looking statements" within the meaning of applicable securities laws regarding events or conditions that may occur in the future (e.g., whether inclusion on the Russell Index will enhance shareholder value and permit the Company to expand its shareholder registry; the success of the Company's ongoing strategic initiatives; what decisions will be made for ramp-up of operations at Lost Creek, and when those decisions will occur) and are based on current expectations that, while considered reasonable by management at this time, inherently involve a number of significant business, economic and competitive risks, uncertainties and contingencies. All statements, other than statements of historical fact, are considered to be forward-looking statements. Forward-looking statements involve known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements of the Company to be materially different from any future results, performance or achievements express or implied by the forward-looking statements. Factors that could cause actual results to differ materially from any forward-looking statements include, but are not limited to, capital and other costs varying significantly from estimates; fluctuations in commodity prices; failure to establish estimated resources; the grade and recovery of mineral resources which are mined varying from estimates; production rates, methods and amounts varying from estimates; delays in obtaining or failures to obtain required governmental, environmental or other project approvals; changes to regulatory and legal requirements; inflation; changes in exchange rates; delays in development, and other factors described in the public filings made by the Company at www.sedar.com and www.sec.gov. Readers should not place undue reliance on forward-looking statements. The forward-looking statements contained herein are based on the beliefs, expectations and opinions of management as of the date hereof and Ur-Energy disclaims any intent or obligation to update them or revise them to reflect any change in circumstances or in management's beliefs, expectations or opinions that occur in the future.