NOTIFICATION OF TRANSACTIONS OF DIRECTORS/PERSONS DISCHARGING MANAGERIAL
    RESPONSIBILITIES AND CONNECTED PERSONS

    GKN plc (the 'Company') announces that it has been notified of the following
    transaction in the Company's ordinary shares of 10p ('Shares') undertaken by a
    person discharging managerial responsibilities ('PDMR').

    GKN Deferred Bonus Plan ('DBP')

    On 22nd March 2017, a DBP award was granted to the PDMR named below. The DBP
    award represents a percentage of the amount earned under the Company's annual
    bonus arrangements for 2016 compulsorily deferred and invested into Shares.
    Subject to the rules of the DBP, the Shares will normally be released after the
    announcement of the Company's annual results for the financial year following
    the year in which the award was granted. Malus provisions will apply to the
    award.

    No consideration was paid for the grant of the DBP award and no payment is due
    on release of any Shares.

    PDMR                                                        Number of Shares awarded
                                                                                        
    Kevin Cummings                                                                16,675

    Further details of the transaction can be found in the Notification of Dealing
    Form for the PDMR set out below.

    This notification is made in accordance with the requirements of Article 19 of
    the EU Market Abuse Regulation.

                              Notification of Transactions                          
                                                                                    
    Details of the Person Discharging Managerial Responsibilities/ Person Closely   
    Associated With                                                                 
                                                                                    
    Name                                     Kevin Cummings                         
                                                                                    
                                                                                    
    Reason for the notification                                                     
                                                                                    
    Position/status                          Chief Executive GKN Aerospace          
                                                                                    
    Initial notification /Amendment          Initial                                
                                                                                    
                                                                                    
    Details of the issuer                                                           
                                                                                    
                                                                                    
    Name                                     GKN plc                                
                                                                                    
    LEI                                      213800QNZ22GS95OSW84                   
                                                                                    
                                                                                    
    Details of the transaction(s): section to be repeated for (i) each type of      
    instrument;                                                                     
    (ii) each type of transaction; (iii) each date; and (iv) each place where       
    transactions                                                                    
    have been conducted                                                             
                                                                                    
                                                                                    
    Description of the financial instrument, GKN plc ordinary shares of 10p each    
    type of instrument                                                              
                                                                                    
    Identification code                      GB0030646508                           
                                                                                    
                                                                                    
    Nature of the transaction                Award of shares under the GKN Deferred 
                                             Bonus Plan                             
                                                                                    
                                             Price(s)       Volume(s)               
    Price(s) and volume(s)                                                          
                                                                                    
                                             0              16,675                  
                                                                                    
    Aggregated information                                                          
                                                                                    
                                             16,675                                 
                                             0                                      
                                                                                    
    Date and time of the transaction         2017/03/22                             
                                                                                    
    Place of the transaction                 Outside a trading venue                

    24 March 2017

    LEI: 213800QNZ22GS95OSW84

    Classification of Information: Additional regulated information required to be
    disclosed under the laws of a member state