Summa Silver Corp. announced that it has entered into an amendment to the option and joint venture agreement pursuant to which it has a right to earn up to a 100% interest in the historic Mogollon silver-gold mining district from Allegiant Gold Ltd. Pursuant to the Amending Agreement, the parties extended from 60 days to 120 days the time period by which the Company must exercise the second option following exercise of the first option. The Amending Agreement also acknowledges that, since execution of the original option and joint venture agreement, Allegiant has delivered to the Company certain additional data and transition services. In consideration for the Time Extension and the Additional Data and Services, the Company has agreed in the Amending Agreement to issue to Allegiant an additional 150,000 common shares in the capital of the Company. The Amending Agreement is subject To Approve the TSX Venture Exchange.