Andover Mining Reports Assay Results from SUN 12-40 at Its Wholly Owned SUN District, Ambler Mineral Belt

VANCOUVER, 09/19/12 - Andover Mining Corp. ("Andover" or the "Company") (TSX VENTURE: AOX) (OTCBB: AOVTF) (FRANKFURT: R2X) is pleased to report updated results from its 2012 drill campaign at the SUN District, Ambler Mineral Belt, northwestern Alaska.

Assays have been received from drill hole SUN 12-40 which targeted the Main SUN Deposit. Drill hole SUN 12-40 was completed on August 19, 2012 and represents a significant down dip step-out from the previously released drill hole SUN 12-39. Results are summarized in the following table:

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                          Inte- Inte-
                          rcept rcept Inte-  True
            Angle /    TD  From    To  rval Width   Cu   Pb   Zn    Ag    Au
DDH ID #    Bearing   (m)   (m)   (m)   (m)   (m)  (%)  (%)  (%) (g/T) (g/T)
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SUN-12-40 -90 / 000 203.6  95.4 108.3  12.9  11.2 0.82 1.37 6.21  70.4 0.072
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                          127.1 132.1   5.0   4.1 1.97 0.41 1.68  29.6 0.118
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Previous results from the 2012 drill program targeting the Main SUN Deposit were reported in news releases dated July 18, August 21, August 29 and September 12, 2012.

"We are very encouraged by the continuing positive results from our 2012 drill program on the SUN District," says Kent Turner, COO of Andover Mining. "Through the 3 seasons of Andover's drilling campaigns on the Main SUN Deposit (2007, 2011 and 2012) we have drilled and identified what we believe is continuous high grade mineralization in multiple lenses, with a strike length of over 1.5 kilometers of drill indicated mineralization. The mineralization starts at the surface and extends down-dip at least 200-300 meters. The mineralization is still open on-strike to the northeast and remains open at depth. This is a very extensive massive sulfide system and continued work is needed to determine just how large the Main SUN Deposit will ultimately be."

The 2012 drill core was logged, split and boxed on site by Andover's geologists. Core from the SUN Deposit was shipped to the ALS-Chemex Prep Lab in Fairbanks, Alaska. The pulps from Fairbanks were analyzed for 35 elements at the ALS-Chemex facilities in Vancouver, British Columbia and the gold assays were performed at ALS-Chemex facilities in Reno, Nevada. Base metal over-limits were wet assayed. Blanks and standards were inserted with each sample shipment.

The 2012 drilling program at the SUN District has been completed and equipment is currently being demobilized from the site. Results from the remaining drill holes at the SUN District will be released as they are received from ALS-Chemex.

This news release has been reviewed by Bradley C. Peek, Certified Professional Geologist (AIPG CPG-11299) and General Manager for Andover's Ambler District projects. Mr. Peek is a National Instrument 43-101 qualified person and is responsible for the technical aspects of this news release.


About Andover:

Andover is a precious and base metal exploration and development company focused on copper exploration at its flagship asset, the SUN District, located in the Ambler Mineral Belt, Northwest, Alaska. The Ambler Mineral Belt hosts world-class VMS deposits containing copper, zinc, lead, gold and silver. The Ambler Mineral Belt is one of the richest and most-prospective copper mineral belts located in one of the safest geopolitical jurisdictions in the world. Andover controls approximately 36, 800 acres through sole ownership of 230 Alaska State mining claims in the SUN District and approximately 9,120 acres through sole ownership of 57 Alaska State claims in the Smucker area of the Ambler Mineral Belt. In Utah, Andover, through its 83.5% ownership of Chief Consolidated Mining Company whose lands located in the historic East Tintic Mining District, has a multi faceted development approach. The Big Hill project, where Kennecott Exploration Company can earn a 55% interest by carrying Chief through to the end of a Feasibility Study, is focused on a large porphyry copper prospect. The Burgin Complex, host to a limestone silver-lead-zinc replacement deposit, has completed a Preliminary Economic Assessment and is preparing this deposit and the Trixie gold mine toward exploitation. Chief owns fee simple approximately 16,000 acres in Utah.

For further information we invite you to visit us at www.andovermining.com.


ON BEHALF OF THE BOARD

Gordon Blankstein
CEO and Chairman



Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.



Contacts:

Andover Mining Corp.
Richard Martens, Investor Relations
1-604-682-2168 or Int'l Toll Free: 1-800-266-4484
rick@andovermining.com
www.andovermining.com