Exhibit 99.4
 

FORM 51-102F3
MATERIAL CHANGE REPORT
 
1.  
Name and Address of Company
 
Ur-Energy Inc.
55 Metcalfe Street, Suite 1300
Ottawa, Ontario K1P 6L5

2.  
Date of Material Change
 
June 1, 2010
 
3.  
News Release
 
Attached as Schedule A is a copy of the news release issued by Ur-Energy Inc. (the “Corporation” or “Ur-Energy”) on June 1, 2010 at Denver, Colorado via Windward Global, and by Marketwire.
 
4.  
Summary of Material Change
 
The Corporation announced on June 1, 2010, the receipt of final permit approval from the State of Wyoming for the construction and operation of UIC Class I injection wells for Ur-Energy’s Lost Creek In-situ Recovery (ISR) uranium project in Wyoming.  Issuance of this required permit marks a significant milestone in the effort to fully permit Ur-Energy’s wholly owned Lost Creek ISR project.

The Wyoming Department of Environmental Quality (WDEQ) finalized its approval of the Class I Underground Injection Control Permit (UIC Permit) which authorizes Ur-Energy to drill, complete and operate up to five Class I non-hazardous injection wells at the Lost Creek site.
 
 
 
5.  
Full Description of Material Change
 
The Corporation announced on June 1, 2010, the receipt of final permit approval from the State of Wyoming for the construction and operation of UIC Class I injection wells for Ur-Energy’s Lost Creek In-situ Recovery (ISR) uranium project in Wyoming.  Issuance of this required permit marks a significant milestone in the effort to fully permit Ur-Energy’s wholly owned Lost Creek ISR project.

The Wyoming Department of Environmental Quality (WDEQ) finalized its approval of the Class I Underground Injection Control Permit (UIC Permit) which authorizes Ur-Energy to drill, complete and operate up to five Class I non-hazardous injection wells at the Lost Creek site.  The WDEQ authorized a sufficient number of wells and capacity to meet the anticipated water management requirements for the life of the Lost Creek ISR project. With prior authority, one well was previously installed by Ur-Energy to the appropriate depth for the purpose of collecting data for the application.  That well was constructed to serve as a Class I injection well in the future.  The UIC Permit demonstrates Ur-Energy’s commitment to protecting the environment through the use of best practice technology and well accepted water management systems.
 
 
6.  
Reliance on subsection 7.1(2) or (3) of National Instrument 51-102
 
Not applicable.
 
 
 
 
 
7.  
Omitted Information
 
Not applicable.
 
8.  
Executive Officer
 

Paul G. Goss
General Counsel & Corporate Secretary
Ur-Energy Inc.
10758 W. Centennial Road, Suite 200
Littleton, Colorado  80127
Telephone: (720) 981-4588
  

9.           Date of Report
 
June 1, 2010