REG-INVESCO Limited Rule 8.1 - TRADING EMISSIONS PLC

LONDON--(Business Wire)--

FORM 8.1

DEALINGS BY OFFERORS, OFFEREE COMPANIES OR THEIR ASSOCIATES

FOR THEMSELVES OR FOR DISCRETIONARY CLIENTS

(Rules 8.1(a) and (b)(i) of the Takeover Code)

1. KEY INFORMATION

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Name of person dealing (Note 1) INVESCO LIMITED
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Company dealt in TRADING EMISSIONS PLC
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Class of relevant security to which the ORDINARY 1p SHARES
dealings being disclosed relate (Note 2)
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Date of dealing 16 MAY 2008
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2. INTERESTS, SHORT POSITIONS AND RIGHTS TO SUBSCRIBE

(a) Interests and short positions (following dealing) in the class of relevant
security dealt in (Note 3)

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Long Short
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Number (%) Number (%)
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(1) Relevant securities 84,510,789 30.18%
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(2) Derivatives (other than options)
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(3) Options and agreements to
purchase/sell
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Total 84,510,789 30.18%
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(b) Interests and short positions in relevant securities of the company, other
than the class dealt in (Note 3)

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Class of relevant security: Long Short
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Number (%) Number (%)
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(1) Relevant securities
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(2) Derivatives (other than options)
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(3) Options and agreements to
purchase/sell
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Total
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(c) Rights to subscribe (Note 3)

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Class of relevant security: Details
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3. DEALINGS (Note 4)

(a) Purchases and sales

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Purchase/sale Number of securities Price per unit (Note 5)
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Sale 101,000 132.740p
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(b) Derivatives transactions (other than options)

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Product name, Long/short (Note 6) Number of securities (Note 7) Price per unit (Note 5)
e.g. CFD
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(c) Options transactions in respect of existing securities

(i) Writing, selling, purchasing or varying

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Product name, Writing, Number of Exercise Type, e.g. Expiry Option money
e.g. call option selling, securities to price American, date paid/received
purchasing, which the option European per unit (Note
varying etc. relates (Note 7) etc. 5)
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(ii) Exercising

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Product name, e.g. call option Number of securities Exercise price per unit (Note 5)
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(d) Other dealings (including new securities) (Note 4)

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Nature of transaction (Note 8) Details Price per unit (if applicable) (Note
5)
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4. OTHER INFORMATION

Agreements, arrangements or understandings relating to options or derivatives

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Full details of any agreement, arrangement or understanding between the person disclosing and any other
person relating to the voting rights of any relevant securities under any option referred to on this
form or relating to the voting rights or future acquisition or disposal of any relevant securities to
which any derivative referred to on this form is referenced. If none, this should be stated.
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Is a Supplemental Form 8 attached? (Note 9) YES/NO

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Date of disclosure 19 MAY 2008
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Contact name ON BEHALF OF INVESCO LIMITED
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Telephone number 01491 417404
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Name of offeree/offeror with which associated
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Specify category and nature of associate status (Note 10)
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Notes

The Notes on Form 8.1 can be viewed on the Takeover Panel's website at
www.thetakeoverpanel.org.uk

INVESCO Limited

Copyright Business Wire 2008