SHELL CAPITAL LIMITED

                                POWER OF ATTORNEY

By this Deed of Power of Attorney dated 1st of May, 2002,  SHELL CAPITAL LIMITED
("the Company") a company  registered in the United Kingdom under Company Number
3553096,  whose registered  office is situated at Shell Centre,  London SE1 7NA,
England,  hereby appoints Mr Roderick Innes Owen,  failing whom Dominic Ignatius
Lynch  (each  empowered  to  act  alone  to be  the  true  and  lawful  Attorney
(hereinafter  called "the Attorney" which  expression shall include each and any
of the said attorneys) of the Company in its name and on its behalf to do all or
any of the following:

1.   To represent the Company and in particular:

     a)   to sign, execute,  deliver and issue (whether under hand or seal or as
          a deed  and  with  all  amendments  as  the  Attorney  shall  consider
          appropriate)  the agreements  listed in the schedule  attached  hereto
          (the "Agreements"); and

     b)   otherwise  to do any and all  such  other  acts  and  things  to sign,
          execute,  enter into,  acknowledge  and perfect any and all such other
          documents,  notices,  instruments  or  other  communications,  as  the
          Attorney may in his opinion or discretion deem  necessary,  desirable,
          advisable or appropriate including,  without limitation,  to agree any
          amendments  to the  Agreements  or any  other  agreement  to which the
          Company may be a party,  which the Attorney  may  consider  necessary,
          convenient or desirable in connection  with the  Agreements or related
          to the Agreements.

2.   In favour of a person  dealing  with the Attorney  and his  successors  and
     assigns,  all acts done and documents executed or signed by the Attorney on
     or before the Power of  Attorney  expires,  in good faith in the  purported
     exercise of any power  conferred  by this Deed,  shall for all  purposes be
     valid and binding on the Company and its successors and assigns.

THIS POWER OF ATTORNEY, is governed by and shall be construed in accordance with
the laws of England.

THIS POWER OF ATTORNEY,  unless revoked earlier in writing,  shall cease to have
effect on 29th April, 2003.

AND THE COMPANY HEREBY undertakes to ratify and confirm everything lawfully done
or caused to be done by the said  Attorney in the exercise of the powers  hereby
conferred  (including in such confirmation  whatsoever shall be done between the
time of revocation by any means of this Power and such revocation  becoming know
to the  Attorney)  in the name of and on behalf of the  Company  pursuant to the
powers aforesaid.

IN WITNESS whereof the Company has executed this Power of Attorney as a Deed the
day and year first above written.

Given under the Common Seal of            )
SHELL CAPITAL LIMITED                     )
as a Deed                                 )

                                                                   /seal/

Director   /s/
        ---------------------------------------


Secretary    Company Secretary






                                    SCHEDULE



                               List of Agreements




1.   Sale and Purchase Agreement;

          including:

          a)   notification  of  termination  of the  KKM  Pledge  Agreement  to
               release KKM secured shares.

          b)   transfer certificate

2.   Mutual Release and Indemnity Agreement

3.   Notice of  resignation  of  Facility  Agent and  appointment  of  successor
     Facility Agent

4.   Cessation as Modeller pursuant to the Loan Agreement

5.   Cessation as Arranger pursuant to the Loan Agreement

6.   Amendment and Transfer of Warrants

7.   Notice  of  Termination  of  the  Offtake  Agreement,   Technical  Services
     Agreement and STASCO Service Agreement

8.   Pricing Letter

9.   Disclosure Letter

10.  CRI Side Letter

11.  Stock Transfer Form in relation to the CAP (G) Preference Shares,

12.  Consent to Refinancing Loan

13.  Instructions to the Account Bank in relation to the Partial Loan Repayment

14.  Documentation and notices for  discontinuation of Guernsey  Liquidation and
     UK lawsuit

15.  Filing of Schedule  13D with SEC in relation to the Warrant  amendment  and
     transfer.