Kensington Resources Ltd.
TSX VENTURE : KRT

Kensington Resources Ltd.

September 23, 2005 21:51 ET

CORRECTION FROM SOURCE-Kensington Resources Ltd.: Revised 2004 Microdiamond Recoveries for Kimberlites 121 and 221

VANCOUVER, BRITISH COLUMBIA--(CCNMatthews - Sept. 23, 2005) - Kensington Resources Ltd. (the "Company") (TSX VENTURE:KRT) announces minor revisions to the previous news release of September 22, 2005 reporting microdiamond recoveries for Kimberlites 121 and 221. The mass of kimberlite sampled in drillhole 04-221-002 is corrected to 24.65 kg from 16.40 kg in Table 3 and calculations based on this number were revised accordingly. In addition, one diamond was added to the column titled "Stones larger than 0.5mm" in Table 1 for drillhole 04-121-012 and a footnote pertaining to this column inserted below the table. The remaining news release information remains the same. Kensington regrets any inconvenience to shareholders and the public that these transposition errors may have caused.

"Diamond abundances recovered from both 121 and 221 greatly exceeded historical recoveries in these kimberlites. The combined inventory of microdiamonds for each kimberlite will be used to determine grade forecasts and then to prioritize the bodies for further work," states Robert A. McCallum, President and CEO of Kensington Resources Ltd.

The 121 and 221 kimberlites occur on the east side of the main cluster of the Fort a la Corne Kimberlite Province. Eight HQ coreholes (121-09 to 13, 221-02 to 04) provided a total metreage of 1,745 m of core with a combined intersection of 624.3 m of kimberlite. Kimberlite thicknesses varied between 32.27 m and 177.5 m for kimberlite body 121 and between 51.16 m and 75.38 m for kimberlite body 221. Drillholes 04-121-011 and 04-221-002 were reduced to NQ size core at a depth of 165 m due to technical problems encountered while drilling. Medium to coarse-grained pyroclastic units were intersected in the centre of each body and these are the highest interest areas. The average total core recovery for the 2004 121/221 drillholes was 97.1%.

Kimberlite 121

A total of 326 microdiamonds were recovered from 295.25 kg of kimberlite core in 36 samples utilizing caustic dissolution methods at the Saskatchewan Research Council (SRC). Microdiamond recoveries were audited and individual stone sizes calculated by experts at the De Beers Kimberley Microdiamond Laboratory (KMDL) in South Africa. Only microdiamond data from the SRC are reported here. Summaries of diamond recovery by kimberlite drillhole and by sieve category are shown in Tables 1 and 2.



Table 1: Summary of 2004 and Historical Kimberlite 121
Microdiamond Results
--------------------------------------------------------------------
Number Stones
of Sample Carat Average larger
Samples Mass Weight # of Stones/ than
Drillhole (1) (kg) (carats) Stones 10kg 0.5 mm(2)
--------------------------------------------------------------------
04-121-009 19 155.95 0.430420 248 15.90 1
--------------------------------------------------------------------
04-121-010 4 32.95 0.000715 13 3.95 0
--------------------------------------------------------------------
04-121-011 5 41.00 0.000710 25 6.10 0
--------------------------------------------------------------------
04-121-012 4 32.65 0.005110 25 7.66 1
--------------------------------------------------------------------
04-121-013 4 32.70 0.000530 15 4.59 0
--------------------------------------------------------------------
Total: 36 295.25 0.437485 326 11.04 2
--------------------------------------------------------------------
121 7 DH;43
Historical(3) samples 875.75 0.1049610 378 5.18 17
--------------------------------------------------------------------
1 equals For the 2004 samples, representative sample intervals ranged
from 4.2 to 33.6 m of kimberlite intersection; sample weights
ranged from 8.05 to 8.35 kg
2 equals Stones with at least one axis greater than 0.5 mm in length
3 equals Due to the wide variance in sample mass per historical
drillhole, the average stones/10 kg for the historical results
was weighted by the mass of individual samples (a simple average
of drillhole values was calculated at 4.32 stones/10 kg)


At first look, microdiamond recoveries in 2004 appear considerably higher than historical recoveries, which are shown at the bottom of Table 1. At 11.04 stones/10kg, the average stone density of the 2004 recoveries is more than double that of the historical recoveries and is actually much higher if the 94 microdiamonds measuring less than 0.075 mm are not included in the historical tally. However, the average is affected significantly by very high stone recoveries in 04-121-009, which was located near the centre of the body and proximal to three historical holes with drillhole averages of greater than 6 stones/10 kg. While stone densities for the four drillholes located some 200 to 250 m away from the postulated central eruptive vent are comparable to the historical results, there is some indication that the centre of the pipe is more microdiamond-rich than the margins.

It is not known why only two stones larger than 0.5 mm were recovered in the 2004 program (notably, one was recovered on the 2.8 mm sieve screen and weighs 0.41667 carats), but most of the larger stones recovered in the historical programs were from the same central area of the body.

Microdiamonds recovered from the 2004 program will be combined with all suitable historical diamond results and submitted to Mineral Resource Management (MRM) of De Beers for grade forecasts of commercial-sized diamonds based on statistical and graphical treatment of the data.



Table 2: Kimberlite 121 Microdiamond Recoveries by Drillhole and
Sieve Category
--------------------------------------------------------------------
+0.075 +0.106 +0.150 +0.212 +0.300 +0.425 +2.800
mm mm mm mm mm mm mm
Drillhole Sieve Sieve Sieve Sieve Sieve Sieve Sieve
--------------------------------------------------------------------
04-121-009 96 85 39 19 7 1 1
--------------------------------------------------------------------
04-121-010 6 2 3 2 0 0 0
--------------------------------------------------------------------
04-121-011 11 10 4 0 0 0 0
--------------------------------------------------------------------
04-121-012 4 7 4 4 3 3 0
--------------------------------------------------------------------
04-121-013 7 4 3 0 1 0 0
--------------------------------------------------------------------
Total: 124 108 53 25 11 4 1
--------------------------------------------------------------------


Kimberlite 221

A total of 168 microdiamonds were recovered from 203.33 kg of kimberlite core in 25 samples utilizing caustic dissolution methods at the Saskatchewan Research Council (SRC). Microdiamond recoveries were audited and individual stone sizes calculated by experts at the De Beers Kimberley Microdiamond Laboratory (KMDL) in South Africa. Only microdiamond data from the SRC are reported here. Summaries of diamond recovery by kimberlite drillhole and by sieve category are shown in Tables 3 and 4.



Table 3: Summary of 2004 and Historical Kimberlite 221
Microdiamond Results
--------------------------------------------------------------------
Stones
Carat Average larger
Number of Sample Weight # of Stones/ than
Drillhole Samples(1) Mass (kg) (carats) Stones 10kg 0.5 mm
--------------------------------------------------------------------
04-221-002 3 24.65 0.001030 16 6.49 0
--------------------------------------------------------------------
04-221-003 19 154.44 0.034955 137 8.87 2
--------------------------------------------------------------------
04-221-004 3 24.24 0.001370 15 6.19 0
--------------------------------------------------------------------
Total: 25 203.33 0.037355 168 8.26 2
--------------------------------------------------------------------
121 1 DH; 8
Historical samples 264.35 0.0781664 74 2.78 3
--------------------------------------------------------------------
1 equals For the 2004 samples, representative sample intervals
ranged from 5.15 to 25.8 m of kimberlite intersection; sample
weights ranged from 8.08 to 8.25 kg


Microdiamond recoveries in 2004 were considerably higher than historical recoveries which are shown at the bottom of Table 3. At 8.26 stones/10kg, the average stone density of the 2004 recoveries is nearly three times that of the historical recoveries and is slightly higher if the 12 microdiamonds measuring less than 0.075 mm are not included in the historical tally. Most of the stones were recovered from a large amount of sample taken from the centrally located corehole 04-221-003 that was targeted on the eruptive vent and near to historic drillhole 221-001 drilled in 1996 using a conventional circulation rotary drilling method. A single large stone was recovered from corehole 04-221-003 weighing just over 0.025 carats and caught on a 1.18 mm sieve screen. Stone densities for all three 2004 coreholes are comparable despite drillholes 04-221-002 and 04-221-004 being located some 200 m away towards the margins of the body.

Microdiamonds recovered from the 2004 program will be combined with all suitable historical diamond results and submitted to Mineral Resource Management (MRM) of De Beers for grade forecasts of commercial-sized diamonds based on statistical and graphical treatment of the data.



Table 4: Kimberlite 221 Microdiamond Recoveries by Drillhole
and Sieve Category
--------------------------------------------------------------------
+0.075 +0.106 +0.150 +0.212 +0.300 +0.425 +1.180
mm mm mm mm mm mm mm
Drillhole Sieve Sieve Sieve Sieve Sieve Sieve Sieve
--------------------------------------------------------------------
04-221-002 8 6 0 1 1 0 0
--------------------------------------------------------------------
04-221-003 55 33 27 15 5 1 1
--------------------------------------------------------------------
04-221-004 6 5 2 1 1 0 0
--------------------------------------------------------------------
Total: 69 44 29 17 7 1 1
--------------------------------------------------------------------


For additional information and maps concerning the 2004 drilling results from Kimberlites 121 and 221, please see the Company's website at www.kensington-resources.com.

Brent C. Jellicoe, P.Geo. is the Qualified Person for the Company and has reviewed the technical information herein. Microdiamond recovery was performed by Saskatchewan Research Council of Saskatoon. 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 have entered 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

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