American Manganese Private Placement Over-Subscribed

Added February 12th, 2010 – Vancouver, British Columbia


American Manganese Inc., (formerly: Rocher Deboule Minerals Corp.) (TSX.V: AMY; Pink Sheets: AMYZF) (the “Company”) is pleased to announce that the non-brokered private placement originally announced on January 25, 2010 has been over-subscribed. The private placement now consists of a total of 5,969,595 units at a price of $0.20 per unit (“Units”) for aggregate proceeds of $1,193,919.

Each Unit is comprised of one common share of the Company plus one-half of a share purchase warrant (the “Warrant”). Each whole Warrant entitles the holder to purchase one common share at a price of $0.30 for two years from the date of issue. All of the securities issued pursuant to this Offering will have a hold period expiring four months after the closing date.

This private placement remains subject to the acceptance of the TSX Venture Exchange (the “TSX”) and finders’ fees may be payable in accordance with the policies of the TSX.

The proceeds of the private placement will be used for exploration and infill reverse circulation
drilling at the Artillery Peak Manganese project as well as general working capital.

On behalf of Management

AMERICAN MANGANESE INC.

Larry W. Reaugh
President and Chief Executive Officer

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The Toronto Stock Exchange has not reviewed and does not accept responsibility for the adequacy or accuracy of this release. This news release may contain certain "Forward-Looking Statements" within the meaning of Section 21E of the United States Securities Exchange Act of 1934, as amended. All statements, other than statements of historical fact, included herein are forward-looking statements that involve various risks and uncertainties. There can be no assurance that such statements will prove to be accurate, and actual results and future events could differ materially from those anticipated in such statements. Important factors that could cause actual results to differ materially from the Company's expectations are disclosed in the Company's documents filed from time to time with the Toronto Stock Exchange, the British Columbia Securities Commission and the US Securities and Exchange Commission.