COEUR D'ALENE, Idaho, Dec. 24 /PRNewswire-FirstCall/ -- Metalline Mining Company (NYSE Amex: MMG) is pleased to announce that on December 22, 2009, it closed a private placement of 6,500,000 units, with each unit consisting of one share of common stock and one warrant. Subject to certain conditions, every two warrants are exercisable to purchase one share of Metalline common stock at a price of $0.57 per share. The units were purchased at $0.46 per unit, for total net proceeds to Metalline of $2,990,000. These proceeds will be used for increased exploration activities at Sierra Mojada and for general working capital. The closing of the private placement was a material term of the Agreement and Plan of Merger and Reorganization Metalline entered into on December 4, 2009, as previously described in Metalline's current report of Form 8-K on that same date. About Metalline Mining Company Metalline Mining Company is an exploration stage enterprise engaged in the business of mining. The Company currently owns mining concessions in the municipality of Sierra Mojada, Coahuila, Mexico. The Company conducts its operations in Mexico through its wholly owned Mexican subsidiaries, Minera Metalin S.A. de C.V. and Contratistas de Sierra Mojada S.A. de C.V. To obtain more information on Metalline Mining Company, visit the Company's web site (http://www.metallinemining.com/). Forward-Looking Statements This news release contains forward-looking statements regarding future events and Metalline's future results that are subject to the safe harbors created under the Securities Act of 1933 (the "Securities Act") and the Securities Exchange Act of 1934 (the "Exchange Act"). These statements are based on current expectations, estimates, forecasts, and projections about the industry in which Metalline operates and the beliefs and assumptions of Metalline's management. Words such as "expects," "anticipates," "targets," "goals," "projects," "intends," "plans," "believes," "seeks," "estimates," "continues," "may," variations of such words, and similar expressions, are intended to identify such forward-looking statements. In addition, any statements that refer to projections of Metalline's future financial performance, Metalline's anticipated growth and potentials in its business and other characterizations of future events or circumstances are forward-looking statements. Readers are cautioned that these forward-looking statements are only predictions and are subject to risks, uncertainties, and assumptions that are difficult to predict, including those identified elsewhere herein, Metalline's Annual Report on Form 10-K for the fiscal year ended October 31, 2008 under "Risk Factors", and in subsequent Quarterly Reports on Form 10-Q. Therefore, actual results may differ materially and adversely from those expressed in any forward-looking statements. Metalline undertakes no obligation to revise or update any forward-looking statements for any reason. Where You Can Find Additional Information This press release is for informational purposes only and is neither an offer to sell nor a solicitation of an offer to buy any securities. Any offer of Metalline securities with respect to the proposed transaction with Dome will be made only through a registration statement and related materials. In connection with the proposed transaction with Dome, Metalline will file a registration statement, including a joint proxy statement of Metalline and Dome, with the SEC. Investors are urged to read the registration statement and joint proxy statement (including all amendments and supplements to it) because they will contain important information. Investors may obtain free copies of the registration statement and joint proxy statement when they become available, as well as other filings containing information about Metalline and Dome, without charge, at the SEC's Internet site (http://www.sec.gov/). These documents may also be obtained by directing a request to Metalline at 1330 E. Margaret Avenue, Coeur d'Alene, Idaho (telephone (208) 665-2002). Metalline and Dome and their respective directors and executive officers and other members of management and employees are potential participants in the solicitation of proxies from Metalline and Dome shareholders in respect of the proposed merger. Information regarding Metalline's directors and executive officers is available in Metalline's annual report on Form 10-K for the year ended October 31, 2008, filed with the SEC on February 13, 2009. Additional information regarding the interests of such potential participants in the proposed transaction with Dome will be included in the registration and joint proxy statement filed with the SEC in connection with the proposed transaction. Web site: http://www.metallinemining.com/ DATASOURCE: Metalline Mining Company CONTACT: Metalline Mining Company, +1-208-665-2002, Fax, +1-208-665-0041, Web Site: http://www.metallinemining.com/

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