Duluth Metals Limited Inc. Hits 2.6% Copper Equivalent Over 125 Feet at Nokomis by 24hgold

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Re: News Release - Monday, May 17, 2010
Title: Duluth Metals Hits 2.6% Copper Equivalent Over 125 Feet at Nokomis

TORONTO, Ontario, May 17, 2010 -- Duluth Metals Limited ("Duluth Metals") (TSX: DM) (TSX:DM.U) today announced results for six holes drilled in the 2010 Drilling Program on the Nokomis Deposit, Ely Minnesota. All holes intersected significant intersections with MEX-167 returning 125 feet of 1.037% copper, 0.311% nickel, 3.6 g/t silver and 1.501 grams per tonne (g/t) Total Precious Metals (TPM = Platinum+palladium+Gold) (Cu Equivalent* of 2.586%) including a 55 foot section of 1.273% copper, 0.401% nickel, 4.6 g/t silver and 2.140 g/t TPM (Cu Equivalent* of 3.362%).

Drill hole MEX-167 is located within the Central Area Higher Grade Zone which was highlighted in the most recent NI 43-101 Resource Estimate dated December 2009. Two additional drill holes, MEX-165 and 168 are located in the northern vicinity of the Central Area Higher Grade Zone. Previously reported higher grade holes in close proximity to MEX-167 include MEX-142-W2 (see press release Dec. 4, 2008) which intersected 24.5 feet of 1.084% copper, 0.296% nickel and 1.715 g/t TPM (Cu Equivalent* of 2.664%) within a 157.5 foot section of 0.740% copper, 0.219% nickel, and 1.114 g/t TPM (Cu Equivalent* of 1.856%); and MEX-109 (see press release July 10, 2008) which intersected 40.0 feet of 0.955% copper, 0.278% nickel, 1.527 g/t TPM and 3.9 g/t silver (Cu Equivalent* of 2.40%) within a 155.0 foot section of 0.828% copper, 0.247% nickel, 1.089 g/t TPM and 3.2 g/t silver (Cu Equivalent* of 2.00%).

In addition, assay results from MEX-166, located approximately 250 feet east of the current NI 43-101 outline of the Eastern Area Higher Grade Zone, indicate the potential extension of this zone to the east. Mex-166 returned 30 feet of 1.239% copper, 0.291% nickel, 4.8 g/t Ag and 1.577 g/t TPM (Cu Equivalent of 2.703%) within a 170 foot section of 0.853% copper, 0.229% nickel, 3.3 g/t Ag and 1.028 g/t TPM (Cu Equivalent* of 1.936%).

A map illustrating the location of these six drill holes can be found on the Company website under this press release at www.duluthmetals.com.

View PDF or Click to Enlarge

A more detailed summary of the assay results for MEX-162, 163, 165, 166, 167 and 168 can be found in the table below. True width is estimated at about 90% of core length.

HOLE	ZONE	FROM (feet)	TO (feet)	LENGTH (feet)	COPPER (%)	NICKEL (%)	*TPM (g/t)**	*CU-EQ (%)**

MEX-162	@0.3% Cu cut-off	2778	2843	65	0.678	0.188	0.806	1.568
	@0.5% Cu cut-off	2778	2828	50	0.764	0.215	0.929	1.782
	including	2778	2793	15	1.100	0.296	1.419	2.531
	@0.3% Cu cut-off	2878	2903	25	0.379	0.086	0.374	0.789

MEX-163	@0.3% Cu cut-off	2187	2372	185	0.633	0.176	0.608	1.406
	@0.5% Cu cut-off	2187	2347	160	0.665	0.186	0.632	1.477
	including	2262	2272	10	1.109	0.249	1.099	2.310
	@0.3% Cu cut-off	2402	2472	70	0.433	0.103	0.382	0.894
	@0.3% Cu cut-off	2502	2522	20	0.440	0.139	0.531	1.084

MEX-165	@0.5% Cu cut-off	3372	3412	40	0.733	0.218	1.287	1.904

MEX-166	@0.3% Cu cut-off	3868	4038	170	0.853	0.229	1.028	1.936
	@0.5% Cu cut-off	3868	4028	160	0.881	0.237	1.062	1.999
	including	3903	3933	30	1.239	0.291	1.577	2.703

MEX-167	@0.3% Cu cut-off	3733	3858	125	1.037	0.311	1.501	2.586
	@0.5% Cu cut-off	3733	3853	120	1.064	0.320	1.547	2.657
	including	3733	3788	55	1.273	0.401	2.140	3.362
	and	3828	3848	20	1.197	0.359	1.416	2.856

MEX-168	@0.3% Cu cut-off	3283	3423	140	0.643	0.170	0.652	1.413
	@0.5% Cu cut-off	3288	3398	110	0.685	0.184	0.689	1.509
	including	3313	3323	10	1.110	0.283	1.101	2.394
	@0.5% Cu cut-off	3488	3493	5	0.969	0.592	1.398	3.259
	@0.5% Cu cut-off	3533	3538	5	1.810	0.145	0.956	2.556

Complete gold, platinum, palladium and silver assays for MEX-162, 163, 165, 166, 167 and 168 are as follows:

HOLE	ZONE	FROM (feet)	TO (feet)	LENGTH (feet)	GOLD (g/t)	PLATINUM (g/t)	palladium (g/t)	SILVER (g/t)

MEX-162	@0.3% Cu cut-off	2778	2843	65	0.143	0.212	0.451	2.1
	@0.5% Cu cut-off	2778	2828	50	0.168	0.244	0.517	2.4
	including	2778	2793	15	0.349	0.320	0.751	3.6
	@0.3% Cu cut-off	2878	2903	25	0.065	0.098	0.211	1.5

MEX-163	@0.3% Cu cut-off	2187	2372	185	0.091	0.158	0.360	2.1
	@0.5% Cu cut-off	2187	2347	160	0.095	0.165	0.373	2.3
	including	2262	2272	10	0.219	0.317	0.564	3.6
	@0.3% Cu cut-off	2402	2472	70	0.056	0.093	0.233	1.7
	@0.3% Cu cut-off	2502	2522	20	0.117	0.161	0.252	1.6

MEX-165	@0.5% Cu cut-off	3372	3412	40	0.148	0.360	0.779	3.0

MEX-166	@0.3% Cu cut-off	3868	4038	170	0.135	0.245	0.648	3.3
	@0.5% Cu cut-off	3868	4028	160	0.139	0.253	0.670	3.4
	including	3903	3933	30	0.303	0.345	0.929	4.8

MEX-167	@0.3% Cu cut-off	3733	3858	125	0.160	0.441	0.901	3.6
	@0.5% Cu cut-off	3733	3853	120	0.164	0.454	0.929	3.7
	including	3733	3788	55	0.202	0.656	1.282	4.6
	and	3828	3848	20	0.141	0.420	0.855	4.3

MEX-168	@0.3% Cu cut-off	3283	3423	140	0.081	0.166	0.405	2.2
	@0.5% Cu cut-off	3288	3398	110	0.084	0.174	0.431	2.4
	including	3313	3323	10	0.145	0.283	0.674	3.5
	@0.5% Cu cut-off	3488	3493	5	0.029	0.294	1.075	1.3
	@0.5% Cu cut-off	3533	3538	5	0.134	0.124	0.698	1.8

"The focus of the current program is infill drilling as well as drill testing the possible extension of the Eastern Area Higher Grade Zone. Mex-167 is an outstanding hole and helps to shape one of our main higher grade zones, known as the Central Area Higher Grade Zone in the south-central portion of Nokomis", stated Dr. Henry J. Sandri, President and CEO of Duluth Metals. "In addition, Mex-166 certainly will build high value tonnage in the Eastern Area Higher Grade Zone as the assay results indicate the possible expansion of this area."

For the 2010 Drill Program, half core samples are being prepared at ALS Chemex Ltd. laboratories in Thunder Bay and then shipped to its analytical facilities in Vancouver. Samples are being analyzed for Au, Pt, and Pd using a standard fire assay with an ICP finish and for 27 other elements using a four acid (near total) digestion and a combination of ICPMS and ICPAES. ICP over limits were re-analyzed using sodium peroxide fusion, acid dissolution followed by ICPAES. The remaining half core samples are being stored in Minnesota.

*Note - Copper Equivalent is based on US metal prices of: Copper - $1.75/lb, Nickel - $7.00/lb, Cobalt - $10.00/lb, Gold - $600/oz, Platinum - $1,100/oz, palladium - $350/oz and Silver - $8.50/oz, and the methodology with metallurgical recoveries, refining costs and other charges being considered for all metals in accordance with the Net Smelter Return Factors contained in the January 22, 2008, NI 43-101 Scoping Study produced by Scott Wilson RPA.

Duluth Metals is continuing to work on completing the definitive shareholders agreement with Antofagasta plc which is expected to be signed by the end of June. In addition both companies are progressing with organizational issues relating to the joint venture which was announced on January 14, 2010.

David Oliver, P. Geo. and Duluth Project Manager is the Qualified Person, in accordance with NI 43-101 of the Canadian Securities Administrators, and is responsible for the technical content of this press release and quality assurance of the exploration data and analytical results.

About Duluth Metals

Duluth is committed to acquiring, exploring and developing copper, nickel and platinum group metal (PGM) deposits. Duluth's principal property is the Nokomis Deposit located within the rapidly emerging Duluth Complex mining camp in northeastern Minnesota. On January 14, 2010, Duluth announced the signing of a binding heads of agreement with Antofagasta plc on a joint venture development of the Nokomis Deposit. The Duluth Complex hosts one of the world's largest undeveloped repositories of copper, nickel and PGMs, including the world's third largest accumulation of nickel sulphides, and one of the world's largest accumulations of polymetallic copper and platinum group metals.

This document may contain forward-looking statements (including "forward-looking statements" within the meaning of the US Private Securities Litigation Reform Act of 1995) relating to Duluth's operations or to the environment in which it operates. Such statements are based on operations, estimates, forecasts and projections. They are not guarantees of future performance and involve risks and uncertainties that are difficult to predict and may be beyond Duluth's control. A number of important factors could cause actual outcomes and results to differ materially from those expressed in forward-looking statements, including those set forth in other public filings. In addition, such statements relate to the date on which they are made. Consequently, undue reliance should not be placed on such forward-looking statements. Duluth disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, save and except as may be required by applicable securities laws.

For further information: please contact Mara Strazdins, Director of Corporate Communications, at mstrazdins@duluthmetals.com or at (416) 369-1500 or Henry Sandri, President and CEO, at hsandri@duluthmetals.com. Minnesota corporate office: telephone 651-389-9990.

Web Page: www.duluthmetals.com

View News Release in PDF Format:
http://www.duluthmetals.com/i/pdf/2010-05-17_NR.pdf: 88 KB in size, approx. 17 seconds to download at 56.6Kbps

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