UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

(RULE 14a-101)

SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of the
Securities Exchange Act of 1934

(Amendment No. )

Filed by the Registrant ☒

Filed by a Party other than the Registrant ☐

Check the appropriate box:

☐	Preliminary Proxy Statement

☐	Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

☐	Definitive Proxy Statement

☒	Definitive Additional Materials

☐	Soliciting Material under §240.14a-12

UR-ENERGY INC.

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check all boxes that apply):

☒	No fee required.

☐	Fee paid previously with preliminary materials.

☐	Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11.

Ur-Energy Inc. Meeting Notice 0263HA Fold Fold IMPORTANT ANNUAL GENERAL MEETING INFORMATION Important Notice Regarding the Availability of Proxy Materials for the Ur-Energy Inc. Annual General and Special Meeting to be Held on June 4, 2026 We are using the U.S. “notice-and-access” system for delivery of the proxy materials relating to this year’s annual general and special meeting of shareholders. Under Securities and Exchange Commission rules, instead of receiving a paper copy of the proxy materials you are receiving this notice that the proxy materials for the annual general and special meeting of shareholders are available on the Internet. Follow the instructions below to view the materials and vote online or request a paper copy. The items to be voted on and the location of the annual general and special meeting are on the reverse side. Your vote is important! This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. We encourage you to access and review all of the important information contained in the proxy materials before voting. The proxy statement and annual report to shareholders are available at: www.envisionreports.com/URGQ2026 Easy Online Access — A Convenient Way to View Proxy Materials and Vote When you go online to view the proxy materials, you can also vote your shares. Step 1: Go to www.envisionreports.com/URGQ2026 to view the proxy materials. Step 2: Click on Cast Your Vote. Step 3: Follow the instructions on the screen to log in. Step 4: Make your selection as instructed on each screen to select delivery preferences and vote. You may also access our proxy materials on our website at www.ur-energy.com and under our issuer profile at www.sedarplus.ca. When you go online, you can also help the environment by consenting to receive electronic delivery of future materials. Obtaining a Paper Copy of the Proxy Materials – If you want to receive a paper copy of the proxy materials, you must request one. There is no charge to you for requesting a paper copy. Please make your request for a paper copy as instructed on the reverse side on or before May 20, 2026 to facilitate timely delivery. Vote by Internet • Go to www.envisionreports.com/URGQ2026 • Or scan the QR code with your smartphone • Follow the steps outlined on the secure website Mr A Sample Designation (if any) Add1 Add2 add3 add4 add5 add6 C1234567890 XXX 000001 CPUQC01.E.INT/000001/i1234 URGQ ENDORSEMENT_LINE______________ SACKPACK_____________

Ur-Energy Inc. Meeting Notice Ur-E