Additional Information

In addition to the director nominees named above, participants in the prospective proxy solicitation may be deemed to include Audley European Opportunities Master Fund Limited (“AEOMF”), Audley Natural Resources Master Fund (“ANRMF”), Audley Capital Management Limited (“ACML”), Audley Investment Management Limited (“AIML”), and Audley Capital Advisors LLP (“Audley Capital”), as well as Nage Capital Management AG (which provides certain investment advisory services to AIML) and its chief executive officer, Lucio Genovese. As of February 19, 2013, AEOMF beneficially owns 1,000 shares of the Company’s common stock, ANRMF beneficially owns 40,000 shares of the Company’s common stock (including 20,000 shares subject to presently exercisable call options) and has sold put options with respect to 20,000 shares of the Company’s common stock, Lawrence Clark, Jr. beneficially owns 22,500 shares of the Company’s common stock (including 12,500 shares subject to presently exercisable call options), and Lucio Genovese beneficially owns 50,000 shares of the Company's common stock subject to presently exercisable call options and has sold put options with respect to 50,000 shares of the Company's common stock. Mr. Treger may be deemed to have a beneficial interest in 15,000 shares of the Company's common stock beneficially owned by a trust of which Mr. Treger and members of his family are beneficiaries. Each person named herein disclaims beneficial ownership of any shares owned by any other person so named. ACML (as the manager of AEOMF), AIML (as the manager of ANRMF), and Audley Capital (which provides certain investment advisory services to ACML and AIML) receive management or advisory fees which may directly or indirectly include a performance element based on the investment performance of AEOMF and/or ANRMF, and Mr. Treger (as managing partner of Audley Capital) participates in such fees received by Audley Capital. (In addition, certain trusts of which Mr. Treger and members of his family are beneficiaries have an equity interest in ACML and AIML, and in AEOMF and ANRMF.) Further information regarding the director nominees and other persons who may be deemed participants, and other matters, will be set forth in a proxy statement to be filed with the Securities and Exchange Commission (“SEC”). SHAREHOLDERS OF THE COMPANY ARE STRONGLY ADVISED TO READ THAT PROXY STATEMENT WHEN IT BECOMES AVAILABLE, BECAUSE IT WILL INCLUDE IMPORTANT INFORMATION. THE PROXY STATEMENT IS EXPECTED TO BE SENT TO SHAREHOLDERS BY OR ON BEHALF OF PARTICIPANTS, AND WILL ALSO BE AVAILABLE AT NO CHARGE ON THE SEC’S WEBSITE AT http://www.sec.gov.

1 WLT US Equity: April 8, 2011($141.17) to February 15, 2013 ($37.92)MSCI World Metals & Mining Index (BBG: MXWO0MM Index): April 8, 2011 ($517.17) to February 15, 2013 ($348.41)

Copyright Business Wire 2010

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