Twin Mining’s 2005 Diamond Exploration Update

Twin Mining Corporation (“Twin Mining”) (TSX-TWG) is pleased to report that Fugro Airborne Surveys have successfully completed 14,642 line km of airborne magnetometer surveys covering approximately 2000 sq. km of the 4000 sq. km Vista group of claims on Twin Mining’s Brodeur Diamond Property (see press release August 10, 2005).

Based on heavy mineral anomalies 11 high priority claim groups were selected for the aeromag survey on Vista. Both, chrome diopside and magnesium ilmenites which are known diamond indicator minerals are present on eight of the Vista heavy mineral clusters (see press release June 23, 2005).

The 2005 exploration program on the Brodeur property also included till sampling and a Reverse Circulation (RC) drill program which tested 11 (14 %) of the 78 drill targets detected by the 2004 airborne magnetometer survey. The till samples and drill cuttings were sent by ship to the harbor at Valleyfield, Quebec and transported from there to SGS Lakefield Research in mid-October. Results will be reported as they become available.

The evaluation of the aeromag targets from the 2004 and 2005 surveys, combined with the analysis of RC drill cuttings, will assist in determining the scope and direction of the 2006 program in this prospective diamond field.

The 2005 exploration program was designed and guided by Dallas Davis Geol. (NU & NT), Twin Mining’s “Qualified Person” for all geological aspects for Twin Mining’s Brodeur diamond exploration program as defined by National Instrument 43-101.

Since Twin Mining acquired the Brodeur diamond property in December 2000, it has spent nearly $12,000,000 on the property. More than 50 carats of gem quality diamonds of high color and purity grading (see press release April 3, 2002) were extracted from the Freightrain pipe kimberlite.

The evaluation of strategic and capital market alternatives to unlock the value of Twin Mining’s significant assets (see press release of June 15, 2005) is well under way. As part of this evaluation, Twin Mining is working with Research Capital Corporation to review a full range of possibilities, including the joint venturing and vending of certain assets of Twin Mining, as well as various financing arrangements.

Twin Mining has two promising diamond properties located in Canada's Eastern Arctic, gold properties under exploration in Quebec and a near production gold project located in Idaho, U.S.A. Twin Mining is a socially and environmentally responsible company dedicated to acquiring, exploring and developing high quality mineral properties.
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