03/08/05- Diamond Results for Drillhole 04-140-045

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Kensington Resources Ltd.: Diamond Results for Drillhole 04-140-045 from Fort A La Corne Kimberlite 140/141
3/8/2005 4:56:02 PM

VICTORIA, British Columbia, Mar 08, 2005 (BUSINESS WIRE) -- Kensington Resources Ltd. (the "Company") (TSX VENTURE:KRT) announces the recovery of 135 macrodiamonds weighing 15.445 carats from large diameter drillhole 04-140-045 targeted on Fort a la Corne Kimberlite 140/141 drilled during the 2004 Evaluation Program.

The total estimated mass of kimberlite excavated from 04-140-045 was 139.72 tonnes of which 103.38 tonnes of material greater than 1.5 mm in size were retained for macrodiamond recoveries. Minibulk samples were shipped to De Beers' dense media separation plant located in Grande Prairie, Alberta for the first stage of diamond recovery procedures, followed by final diamond recovery in an ultra-high security facility in Johannesburg, RSA. Samples and results from drillhole 04-140-045 are the first fully processed batch of many that encompass the 2004 Evaluation Program. A summary of sampling information and diamond recovery results for this drillhole is shown in Table 1.

Table 1: Summary of Macrodiamond Recovery for Minibulk Samples
from Drillhole 04-140-045

--------------------------------------------------------------------
Est.
# of
Diam-
onds
greater
Theor- than
etical 0.25
Excav- cts.
Sample ated Drill- Tot- Drill- (larg-
Kimber- Inter- Mass hole al hole est
Drill- lite val (tonnes) Total Grade Sto- stones/ stone)
hole Unit (metres) (1) Carats (cpht) nes tonne (2)
--------------------------------------------------------------------
04-140-
045 140 96.7 140.34 15.455 11.1 135 1 16
Breccia stones
Beds (0.46)
--------------------------------------------------------------------

1 The calculation of theoretical mass was based on the volume of a
vertical cylinder and a kimberlite rock density of 2.21.

2 Diamond weights were provided in terms of total carats per sieve
class. The reader is cautioned that for interval samples (12 metres)
with multiple stone recoveries, the number of stones greater than
0.25 carats was estimated by dividing total carat weight by the
number of stones in the +11 and larger sieve classes.


Large stone recoveries in drillhole 04-140-045 included an estimated sixteen diamonds greater than 0.25 carat in size with a combined weight of 6.845 carats. These 16 stones, or some 11% of the total number, account for 44% of the carat weight of the parcel. The size distribution of the recovered diamonds from this drillhole is shown in Table 2.

"The recovery of significant numbers of diamonds in the coarser size fractions from this drillhole sample will contribute substantially to improving confidence levels in the grade estimate and modeled value for the breccia beds of the southern 140/141 kimberlite body," commented Robert McCallum, President of Kensington Resources Ltd. "These initial results strongly support the previously forecasted potential of the 140/141 kimberlite by De Beers."

Table 2: Summary of Macrodiamond Recovery by Sieve Size Category

---------------------------------------------------------------------
+1 +2 +3 +5 +6 +7 +9 +11 +12 +13
-1 Si- Si- Si- Si- Si- Si- Si- Si- Si- Si-
Si- eve eve eve eve eve eve eve eve eve eve
eve gre- gre- gre- gre- gre- gre- gre- gre- gre- gre-
less ater ater ater ater ater ater ater ater ater ater
Dri- than than than than than than than than than than than
ll- 1.09 1.09 1.32 1.48 1.83 2.16 2.46 2.85 3.45 4.089 4.52
hole mm mm mm mm mm mm mm mm mm mm mm
---------------------------------------------------------------------
04-
140-
045
Car-
ats 0.020 0.040 0 0.740 2.090 1.560 2.585 1.575 4.320 2.065 0.460
---------------------------------------------------------------------
04-
140-
045
Sto-
nes 6 4 0 22 39 17 21 10 11 4 1
---------------------------------------------------------------------


The 2004 Evaluation Program (CDN $7.6 million) included ten large diameter minibulk drillholes positioned on high-grade zones in kimberlites 140/141 and 122. Five targets were located on the south 140/141 breccia beds and related kimberlite units to collect additional diamonds that will be used to increase the level of confidence in grade forecasts, and for revenue modeling by De Beers' experts. A map of kimberlite body 140/141 showing location of the 2004 drillholes is posted on the Kensington Resources Ltd. website at www.kensington-resources.com.

Full diamond results for large diameter drillhole 04-140-051, including the recently announced 10.53 carat stone, will be released as soon as they are completed and received from the operator, De Beers Canada Inc.

Brent C. Jellicoe, P.Geo. is the Qualified Person for the Company and has reviewed the technical information herein. All aspects of quality assurance, quality control, and sample chain of custody for the Fort a la Corne Joint Venture are managed by De Beers Canada Inc., the project operator.

Kensington Resources Ltd. is an exploration and mine development company currently focused on the high potential Fort a la Corne Diamond Project in Saskatchewan. The management team includes strong technical expertise and is committed to reaching a diamond producer status for the realization of shareholder value. The Fort a la Corne Diamond Project is a joint venture among Kensington Resources Ltd. (42.245%), De Beers Canada Inc. (42.245%), Cameco Corporation (5.51%) and UEM Inc. (carried 10%). After fifteen years of exploration at Fort a la Corne, the joint venture partners are now planning future programs with a view to entering into an accelerated results-driven advanced exploration and evaluation phase targeted on reaching a pre-feasibility decision in 2008. The Fort a la Corne Diamond Project includes 63 identified kimberlite bodies within the largest diamondiferous kimberlite cluster in the world.

FORM 20-F FILE #0-24980

LISTED IN STANDARD & POOR'S

Robert A. McCallum, President & CEO

The TSX Venture Exchange has not reviewed and does not accept responsibility for the adequacy or accuracy of this news release.

Kensington Resources Ltd. (CA:KRT)

SOURCE: Kensington Resources Ltd.

Kensington Resources Ltd.
Robert A. McCallum
President & CEO
1-800-514-7859 or [phone]
Fax: [phone]
[e-mail]
OR
Kensington Resources Ltd.
Mel Gardner
Manager Investor Relations
1-800-710-6083
[e-mail]
www.kensington-resources.com


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