Holding(s) in Company

TR-1: NOTIFICATION OF MAJOR INTERESTS IN SHARES 1. Identity of the issuer or the underlying issuer of existing shares to whichvoting rights are attached: GKN plc 2. Reason for the notification: (please state Yes/No): An acquisition or disposal of voting rights: Yes An acquisition or disposal of qualifying financial instruments which may resultin the acquisition of shares already issued to which voting rights areattached: No An acquisition or disposal of instruments with similar economic effect toqualifying financial instruments: No An event changing the breakdown of voting rights: No Other (please specify): No 3. Full name of person(s) subject to the notification obligation: Ameriprise Financial, Inc and its group 4. Full name of shareholder(s) (if different from 3.): See additional information under section 13 5. Date of the transaction and date on which the threshold is crossed orreached: 12 September 2014 6. Date on which issuer notified: 16 September 2014 7. Threshold(s) that is/are crossed or reached: Above the threshold of 5% 8. Notified details: A: Voting rights attached to shares Class/type Situation previous Resulting situation after the triggeringof shares to the triggering t transaction ransactionif possibleusing the Number Number of Number of Number of voting % of votingISIN CODE of S Voting R shares rights rights hares ights Direct Direct Indirect Direct Indirect GB0030646508 N/A N/A 963,079 963,079 80,620,983 0.059% 4.912% US3617556069 N/A N/A 0 0 2,138 0.000% 0.000% B: Qualifying Financial Instruments Resulting situation after the triggering transaction Type of Expiration date Exercise/ Number of voting % of votingfinancial Conversion period rights that may be rightsinstrument acquired if the instrument is exercised/ converted N/A C: Financial Instruments with similar economic effect to Qualifying FinancialInstruments Resulting situation after the triggering transaction Type of Exercise Expiration Exercise/ Number of voting % of votingfinancial price date Conversion p rights rightsinstrument eriod instrument refers to Nominal Delta CFD 1,138,068 0.069% Total (A+B+C) Number of voting % of voting rightsrights 82,724,268 5.040% 9. Chain of controlled undertakings through which the voting rights and/or thefinancial instruments are effectively held, if applicable: Ameriprise Financial, Inc., which through intermediate holding companiescontrols the voting rights of Columbia Management Investment Advisers, ColumbiaWanger Asset Management, Threadneedle Management Luxembourg S.A. andThreadneedle Asset Management Holdings Ltd, which itself controls the votingrights of Threadneedle Asset Management Ltd, Threadneedle International Ltd andThreadneedle Pensions Ltd. Proxy Voting: 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: Registered Owner A/C No Littledown Nominees Ltd A/c ZLA08 99,304 Littledown Nominees Ltd A/c 41407 2,233,437 State Street Nominees Limited A/c XC7N 1,894,607 Chase Nominees Ltd A/c 75102 1,138,068 HSBC Global Custody Nominee (UK) Limited A/c 847452 253,032 HSBC Global Custody Nominee (UK) Limited A/c 683182 1,151,750 HSBC Global Custody Nominee (UK) Limited A/c 740190 679,328 HSBC Global Custody Nominee (UK) Limited A/c 739874 3,544,784 HSBC Global Custody Nominee (UK) Limited A/c 740311 357,943 The Bank Of New York ( Nominees ) Limited A/c PTG 15303 / 580,407 09997799 HSBC Global Custody Nominee (UK) Limited A/c 811056 191,968 Nortrust Nominees LTD A/c BBH05 820,457 State Street Nominees Limited A/c 2GQ6 9,713,227 William & Glyns (Isle of Man) Nominees Ltd A/c 301780 190,354 Littledown Nominees Ltd A/c ZLA01 655,000 Littledown Nominees Ltd A/c ZLA03 17,321,975 The Bank Of New York ( Nominees ) Limited A/c 52286 701,920 Littledown Nominees Ltd A/c 07198 839,142 Littledown Nominees Ltd A/c 27642 123,937 Littledown Nominees Ltd A/c 10478 29,874 Littledown Nominees Ltd A/c ZLA09 51,395 Littledown Nominees Ltd A/c 10479 32,674 State Street Bank & Trust Boston A/c GPE1 611,092 Littledown Nominees Ltd A/c ZLA12 925,420 Littledown Nominees Ltd A/c ZLA14 282,165 Littledown Nominees Ltd A/c 07207 1,749,174 Mellon Nominees (UK) Ltd A/c WWSF0004002 1,124,536 Littledown Nominees Ltd A/c 18667 946,480 Littledown Nominees Ltd A/c 10469 591,808 Littledown Nominees Ltd A/c 10496 10,823,338 Littledown Nominees Ltd A/c 10492 1,969,874 Littledown Nominees Ltd A/c 10491 9,608,097 Littledown Nominees Ltd A/c 10488 4,795,661 Littledown Nominees Ltd A/c 10495 1,875,000 Littledown Nominees Ltd A/c 10489 1,367,806 Littledown Nominees Ltd A/c 30337 454,244 Littledown Nominees Ltd A/c ZLA15 2,992,852 Ameriprise Financial Inc A/c 2,138 14. Contact name: Katie Francis, Senior Secretarial Assistant 15. Contact telephone number: 01527 533383