Holding in Company

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Financial Services Authority
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TR-1: Notification of Major Interests in Shares
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1. Identity of the issuer or the underlying             Cambridge Mineral Resources
issuer of existing shares to which voting               Plc
rights are attached:
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2. Reason for notification (yes/no)
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An acquisition or disposal of voting rights                             Yes
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An acquisition or disposal of financial instruments which may result in the
acquisition of shares already issued to which voting rights are attached
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An event changing the breakdown of voting rights
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Other (please specify): ______________
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3. Full name of person(s) subject to                   Barclays PLC
notification obligation:
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4. Full name of shareholder(s) (if different           Barclays Stockbrokers Ltd
from 3):
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5. Date of transaction (and date on which the
threshold is crossed or reached if different):         24-Apr-08
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6. Date on which issuer notified:                      25-Apr-08
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7. Threshold(s) that is/are crossed or                 7% to 8%
reached:
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8: Notified Details
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A: Voting rights attached to shares
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Class/type   Situation previous   Resulting situation after the triggering
of shares    to the triggering    transaction
If possible  transaction
use ISIN     --------------------------------------------------------------------------
of voting     Number      Number      Number      Number of              Percentage of
code          of          of voting   of          voting rights         voting  rights
              shares      rights      shares      -------------------------------------
                                                  Direct   Indirect    Direct  Indirect
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GB0001826303  23,153,351  23,153,351  23,528,351  0        23,528,351  0.00    8.08

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B: Financial Instruments

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Resulting situation after the triggering transaction

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Type of       Expiration date    Exercise/       No. of voting rights     Percentage of
financial                        conversion      that may be acquired     voting rights
instrument                       period/date     (if the instrument
                                                 exercised/converted)
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Total (A+B)

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Number of voting rights                 Percentage of voting rights
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23,528,351                              8.08
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9. Chain of controlled undertakings through which the voting rights and /or the
financial instruments are effectively held, if applicable:
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Barclays Stockbrokers Ltd
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Proxy Voting:

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10. Name of proxy holder:

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11. Number of voting rights proxy
holder will cease to hold:

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12. Date on which proxy holder will
cease to hold voting rights:

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13. Additional information:

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14 Contact name:                        Geoff Smith

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15. Contact telephone name:             020 7116 2913
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Cambridge Mineral Resources Plc