Director/PDMR Shareholding

RNS Number : 8446J

Cookson Group PLC

07 April 2010

7 April 2010

Directors' Interests

Cookson Group plc

In accordance with the rules of the Cookson Group Long-Term Incentive Plan (the "Plan") the executive Directors of Cookson Group plc ("Cookson" or "the Company") have received their annual allocations of Performance Shares. Under the rules of the Plan, Mike Butterworth, Nick Salmon and Francois Wanecq, received allocations of Matching Shares in respect of the shares they purchased with their 2009 Annual Incentive payments.

Performance Shares were allocated to executive Directors on 7 April 2010, based upon the mid-market closing price for shares in Cookson on 6 April 2010, of £5.865. The allocations were as follows:

Executive Director	Performance Shares
M G Butterworth	54,522
N R Salmon	89,843
F C Wanecq	93,327

In accordance with the rules of the Plan, the executive Directors were eligible to invest all or part of their Annual Incentive payments in shares in the Company in return for which they are granted an award of Matching Shares. In this regard, Messrs Butterworth, Salmon and Wanecq acquired the following £1 Ordinary Shares in Cookson Group plc on 6 April 2010 in London:

Executive Director	Number of shares acquired	Percentage of issued class acquired	Price per share	Total holding following notification	Total percentage holding following notification
M G Butterworth	13,631	0.0049%	£5.879571	147,507	0.05%
N R Salmon	22,462	0.0081%	£5.879571	335,409	0.12%
F C Wanecq	16,221	0.0059%	£5.879571	378,528	0.14%

As a result of this investment in Company shares, the following allocations of Matching Shares were made:

Executive Director	Investment Shares	Matching Shares
M G Butterworth	13,631	52,556
N R Salmon	22,462	86,605
F C Wanecq	16,221	61,761

Awards of Performance and Matching Shares under the Plan will normally vest on or shortly after the third anniversary of the award date. The proportion of an award that vests will be subject to the attainment of certain performance conditions relating to the performance of the Company over the three financial years to which the award relates, as detailed in the Annual Report.

As a result of the above, the interests of the executive Directors in the shares of the Company are as follows:-

Shareholdings:

Executive Director	Current Shareholdings
M G Butterworth	147,507
N R Salmon	335,409
F C Wanecq	378,528

Long-Term Incentive Plan Allocations:

2008 and 2009 Awards

Executive Director	Grant Date	Type of award	Share Allocations outstanding as at 07/04/10	Performance period	Vesting date

M G Butterworth	31/03/08	Performance Shares	32,368	01/01/08-31/12/10	31/03/11
		Matching Shares	66,209	01/01/08-31/12/10	31/03/11

	25/03/09	Performance Shares	174,166	01/01/09-31/12/11	25/03/12
		Matching Shares	321,280	01/01/09-31/12/11	25/03/12

N R Salmon	31/03/08	Performance Shares	53,339	01/01/08-31/12/10	31/03/11
		Matching Shares	102,867	01/01/08-31/12/10	31/03/11

	25/03/09	Performance Shares	287,000	01/01/09-31/12/11	25/03/12
		Matching Shares	694,033	01/01/09-31/12/11	25/03/12

F C Wanecq	31/03/08	Performance Shares	42,531	01/01/08-31/12/10	31/03/11
		Matching Shares	85,990	01/01/08-31/12/10	31/03/11

	25/03/09	Performance Shares	303,486	01/01/09-31/12/11	25/03/12
		Matching Shares	980,170	01/01/09-31/12/11	25/03/12

2010 Awards

Director	Grant Date	Type of award	New Share Allocations 07/04/10	Market Price of shares on day before award (p)	Performance period	Vesting date

N R Salmon	07/04/10	Performance Shares	89,843	586.5	01/01/10-31/12/12	07/04/13
		Matching Shares	86,605	586.5	01/01/10-31/12/12	07/04/13

M G Butterworth	07/04/10	Performance Shares	54,522	586.5	01/01/10-31/12/12	07/04/13
		Matching Shares	52,556	586.5	01/01/10-31/12/12	07/04/13

F C Wanecq	07/04/10	Performance Shares	93,327	586.5	01/01/10-31/12/12	07/04/13
		Matching Shares	61,761	586.5	01/01/10-31/12/12	07/04/13