Adex Mining Awards Contract to SGS Lakefield Research Limited for Mineralogy Assessment Studies

TORONTO, ONTARIO–(MARKET WIRE)–May 21, 2008 — Adex Mining Inc. (“Adex” or the “Company”) (CDNX:ADE.V – News) is pleased to announce the award of an ore mineralogy assessment contract for the development of tungsten, molybdenum, tin and indium at the Mount Pleasant Mine Property (the “Property”) located in southwestern New Brunswick.

Adex awarded the contract to SGS Lakefield Research Limited of Lakefield, Ontario for a detailed mineralogy assessment of ore at various locations within the Property’s Fire Tower Zone (“FTZ”) and North Zone (“NZ”). The assessment includes a detailed quantification of mineral types and liberation / association of various minerals containing tungsten, tin and molybdenum using QEMSCAN technology and X-ray diffraction analysis. A separated Electron Microprobe analysis will also be completed on the indium carrying minerals.

The mineralogy assessment program will be used to assist with on-going ore delineation drill programs, underground mine development planning and development of process systems for optimum metal recovery. A detailed grain size and liberation analysis of recoverable minerals will also provide information to assist with development of grinding, gravity separation and flotation test programs which are well underway at SGS Lakefield Research Europe Ltd., of Cornwall, United Kingdom.

SGS Lakefield Research Limited and SGS Lakefield Research Europe Ltd., which are leading mineralogy research and metallurgical testing firms, have identified ore characteristics which are ideally suited for optimum recovery of tin and tungsten using gravity and flotation separation techniques. The mineralogical assessment of various locations within the two mineralized zones will improve on the understanding of run-of-mine variability and design of gravity – flotation separation process for both the FTZ and NZ.

The mineralogical assessment program is scheduled for completion within 14 weeks. Based on the results of the metallurgical tests and the detailed assessment of mineralogy within the FTZ and NZ, a preliminary metallurgical process will be defined for optimum primary mineral recovery at the Property.

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