PERTH, WESTERN AUSTRALIA--(Marketwire - Oct. 26, 2012) -

NOT FOR DISTRIBUTION TO UNITED STATES NEWSWIRE SERVICES OR FOR DISSEMINATION IN THE UNITED STATES

Marengo Mining Limited (News - Market indicators)(POMSoX:MGO)(TSX:MRN) wishes to inform the market, that a copy of the following has been today lodged with the ASX:

Addendum to the Notice of Annual General Meeting (November 8, 2012)

A digital copy of this announcement can be viewed by clicking on the following link or at our website under "Investor Centre - Exchange Announcements":

http://www.marengomining.com/reports/AddendumtoMGOAGMNOM2012TSXFinal.pdf

Please note that the Head Office of Marengo is located in Western Australia and is 12 hours ahead of Toronto time.

This news release does not constitute an offer to sell or the solicitation of an offer to buy any ordinary shares within the United States. The ordinary shares have not been offered and will not be registered under the United States Securities Act of 1933, as amended (the "1933 Act"), or any state securities laws. Accordingly, the ordinary shares may not be offered or sold in the United States or to U.S. persons (as such terms are defined in Regulation S under the 1933 Act) unless registered under the 1933 Act and applicable state securities laws or an exemption from such registration is granted.

ABN: 57 099 496 474

YANDERA MINING COMPANY LIMITED (COMPANY NO. 1-53202)

MARENGO MINING (PNG) LIMITED (COMPANY NO. 1-76844)