Vancouver, British Columbia -- Metalline Mining Company (TSX: MMZ, AMEX: MMG) ("Metalline") is pleased to announce that we have appointed Jason Cunliffe, M.Sc. Geology to Chief Geologist at Sierra Mojada, Mexico. 

Mr. Cunliffe has over 16 years experience working throughout South and Central America exploring mainly for precious metals. He has held a number of senior management positions including; the South American Exploration Manager for Hochschild Mining plc. and Underworld Resources. During this time he has been involved in the discovery and advancement of a number of projects including the San José gold-silver vein deposit for Hochschild. Mr. Cunliffe is familiar with Mexican geology having worked in the country previously. Mr. Cunliffe has a Masters degree in Mineral Exploration and Mining Geology from Leicester University in the United Kingdom and is fluent in English and Spanish. 

Tim Barry, President and CEO said, "Mr. Cunliffe is the ideal candidate to head our operations at Sierra Mojada. His technical expertise and proven managerial abilities will be a great asset to the company and to help us unlock the value at Sierra Mojada." 

Mr. Cunliffe will take over the role of Chief Geologist from Nick Suter, who is moving onto new opportunities. We would like to thank Mr. Suter for his contributions at Sierra Mojada and wish him all the best for the future. 

About Metalline Mining Company

Metalline Mining Company is focused on the acquisition, exploration and development of mineral properties. Metalline currently owns mineral concessions in the municipality of Sierra Mojada, Coahuila, Mexico and holds licenses in Gabon, Africa. Metalline 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 www.metallinemining.com.

On behalf of the Board of Directors

"Tim Barry"

Tim Barry, MAusIMM
Chief Executive Officer, President and Director

INVESTOR RELATIONS CONTACT INFO: 
Anthony Srdanovic, B.A. Comm
Manager Corporate Communications
Direct Line: (604) 895-7429
Office Line: (604) 687-5800
info@metallinemining.com

Cautionary note regarding forward looking statements. This news release contains forward-looking statements regarding future events and Metalline's future results that are subject to the safe harbours 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 potential in its business and other characterizations of future events or circumstances are forward-looking statements. Such statements are subject to a number of assumptions, risks and uncertainties, including such factors as the volatility and level of commodity prices, currency exchange rate fluctuations, uncertainties in cash flow, expected acquisition benefits, exploration mining and operating risks, competition, litigation, environmental matters, the potential impact of government regulations, and other matters discussed under the caption "Risk Factors" in our Annual Report on Form 10-K for the fiscal year ended October 31, 2010 and subsequent periodic reports, many of which are beyond our control. Readers are cautioned that forward-looking statements are not guarantees of future performance and that actual results or developments may differ materially from those expressed or implied in the forward-looking statements.