1.

Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached

CELOXICA HOLDINGS PLC

2.

Reason for the notification (please tick the appropriate box or boxes)

An acquisition or disposal of voting rights

(X)

An acquisition or disposal of financial instruments which may result in the acquisition of shares already issued to which voting rights are attached

(   )

An event changing the breakdown of voting rights

(   )

Other (specify):

(   )

3.

Full name of person(s) subject to the notification obligation:

Xilinx, Inc.

4.

Full name of shareholder(s) (if different from 3.)

Xilinx Holding Three Limited

5.

Date of the transaction (and date on which the threshold is crossed or reached if different):

10 Oct 2007

6.

Date on which issuer notified:

18 Oct 2007

7.

Threshold(s) that is/are crossed or reached:

14%

8.

Notified details:

Class/type of shares (if possible using the ISIN code)

Ordinary 1p (GB00B0L9TZ33)

Situation previous to the triggering transaction

Resulting situation after the triggering transaction

Number of Shares

Number of Voting Rights

Number of shares

Number of voting rights

% of voting rights

Direct

Direct

Indirect

Direct

Indirect

9,082,248

9,082,248

12,240,143

12,240,143

14.5%

Expiration date

Exercise/Conversion Period/Date

Number of voting rights that may be acquired if the instrument is exercised/converted

% of voting rights

Number of voting rights

% of voting rights

12,240,143

14.5%

9.

Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable:

Shares purchased by Xilinx Holding Three Ltd (a wholly-owned subsidiary of Xilinx, Inc).

10.

Name of the proxy holder:

11.

Number of voting rights proxy holder will cease to hold:

12.

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

13.

Additional information:

14:

Contact name:

Dan Gibbons

15.

Contact telephone number:

720-652-3832