Exhibit 99.1
September 12, 2012
ETF Securities USA LLC
c/o ETF Securities
Ordnance House
31 Pier Road
St. Helier, Jersey JE48PW, Channel Islands
Attn: Chief Executive Officer
Dear Sir,
Effective immediately, I hereby resign from my positions as Vice President, Chief Financial Officer, Treasurer and Secretary of ETF Securities USA LLC.
Very truly yours,
/s/ Thomas Quigley
Thomas Quigley