Uranium One Names Grier Colter as New CFO Uranium One Inc (Incorporated in Canada) (Registration number: 15096422420) Share code on the JSE: UUU & ISIN: CA91701P1053 Share code on the TSX: UUU & ISIN: CA91701P1053 (“Uranium One” or the “Company”) News Release April 8, 2013 Uranium One Names Grier Colter as New CFO Toronto, Ontario – Uranium One Inc. today announced that Grier Colter has been appointed as the Company’s Executive Vice President and Chief Financial Officer. Mr. Colter has over 15 years of experience in finance and most recently held senior level positions at Barrick Gold Corporation, with a focus on financial reporting, treasury and corporate finance. Before joining Barrick, Mr. Colter was Treasurer of Moneris Solutions Corporation. Mr. Colter earned his Chartered Accountant designation with Ernst and Young LLP. He is a Chartered Financial Analyst, and holds a Bachelor of Business Administration with Honours from Wilfrid Laurier University. Mr. Colter succeeds Graham du Preez who will be leaving the Company to pursue other opportunities. The Board of Directors of Uranium One wishes to express its deep appreciation to Mr. du Preez for his past service and contributions to the Company. About Uranium One Uranium One is one of the world’s largest uranium producers with a globally diversified portfolio of assets located in Kazakhstan, the United States, Australia and Tanzania. For further information, please contact: Chris Sattler Chief Executive Officer Tel: +1 647 788 8500 Anton Jivov Vice President, Corporate Affairs Tel: +1 647 788 8461 Bay Adelaide Centre • Suite 1710, Box 23 Toronto • ON • CANADA • M5H 2R2 Cautionary Statement No stock exchange, securities commission or other regulatory authority has approved or disapproved the information contained herein. For further information about Uranium One, please visit www.uranium1.com. Sponsor Nedbank Capital | 2 Date: 08/04/2013 04:49:00 Produced by the JSE SENS Department. The SENS service is an information dissemination service administered by the JSE Limited ('JSE'). The JSE does not, whether expressly, tacitly or implicitly, represent, warrant or in any way guarantee the truth, accuracy or completeness of the information published on SENS. The JSE, their officers, employees and agents accept no liability for (or in respect of) any direct, indirect, incidental or consequential loss or damage of any kind or nature, howsoever arising, from the use of SENS or the use of, or reliance on, information disseminated through SENS.