PHSC PLC                                    

                                    (the "Company")                                

                                  Director's Dealing                               

    4 September 2017

    PHSC plc, a leading provider of health, safety, hygiene and environmental
    consultancy services and security solutions to the public and private sectors,
    announces that Stephen King, Chief Executive Officer of the Company, today
    purchased 40,000 ordinary shares of 10p each in the Company ("Ordinary
    Shares").  The transaction was effected at an average price of 11.99p per
    Ordinary Share via his SIPP account.

    Following this transaction, Mr King's interest in the Company stands at
    3,190,000 Ordinary Shares, representing 21.73% of the issued share capital of
    the Company.

    The notification below, made in accordance with the requirements of the EU
    Market Abuse Regulation, provides further detail in respect of the transaction
    as described above.  

    1.        Details of the person discharging managerial responsibilities/person closely                            
              associated                                                                                              
                                                                                                                      
    a)        Name:                                                              Stephen King                         
                                                                                                                      
    2.        Reason for the notification                                                                             
                                                                                                                      
    a)        Position/status:                                                   CEO                                  
                                                                                                                      
    b)        Initial notification/Amendment:                                    Initial notification                 
                                                                                                                      
    3.        Details of the issuer, emission allowance market participant, auction platform,                         
              auctioneer or auction monitor                                                                           
                                                                                                                      
    a)        Name:                                                              PHSC plc                             
                                                                                                                      
    b)        LEI:                                                               213800H1B3AR1XRE2674                 
                                                                                                                      
    4.        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                                                                  
                                                                                                                      
    a)        Description of the financial instrument, type of instrument:       Ordinary shares of 10p each          
              Identification code:                                                                                    
                                                                                 GB0 33113456                         
                                                                                                                      
    b)        Nature of the transaction:                                         Purchase                             
                                                                                                                      
    c)        Price(s) and volume(s):                                            Price(s)           Volume(s)         
                                                                                                                      
                                                                                 11.99              25,000            
                                                                                 12.00              15,000            
                                                                                                                      
    d)        Aggregated information:                                                                                 
                                                                                 40,000                               
                                                                                 11.99p                               
                                                                                                                      
    e)        Date of the transaction:                                           2017-09-04                           
                                                                                                                      
    f)        Place of the transaction:                                          London Stock Exchange, AIM Market    
                                                                                 (XLON)                               

    This announcement contains inside information as defined in Article 7 of the
    Market Abuse Regulation No. 596/2014 and is disclosed in accordance with the
    Company's obligations under Article 17 of that Regulation.

    For further information, please contact:

    PHSC plc                                                       01622 717700         
    Stephen King                                                                        
    Stephen.king@phsc.co.uk                                                             
    www.phsc.plc.uk                                                                     
                                                                                        
                                                                                        
    Northland Capital Partners Limited (Nominated Adviser)         0203 861 6625        
    Edward Hutton/David Hignell                                                         
                                                                                        
    Beaufort Securities Limited (Broker)                           020 7382 8300        
    Elliot Hance                                                                        

    About PHSC

    PHSC plc, through its trading subsidiaries Personnel Health & Safety
    Consultants Ltd, RSA Environmental Health Ltd, Adamson's Laboratory Services
    Ltd, QCS International Ltd, Inspection Services (UK) Ltd and Quality Leisure
    Management Ltd, provides a range of health, safety, hygiene, environmental and
    quality systems consultancy and training services to organisations across the
    UK. B to B Links Ltd and SG Systems (UK) Ltd offer innovative security
    solutions including tagging, labelling and CCTV.