Gold Bullion Development Corp. (TSXV:GBB) (OTCPINK:GBBFF) wishes to advise its shareholders that the preliminary prospectus dated September 16, 2011 of its wholly-owned subsidiary Castle Silver Mines Inc. is now available under Castle Silver Mines’ company profile on SEDAR at www.sedar.com. As previously announced, the prospectus is intended to qualify the distribution by Gold Bullion of an aggregate of approximately 1,950,000 common shares of Castle Silver Mines to all shareholders of Gold Bullion by way of dividend in kind.