VinaCapital Vietnam Opportunity Fund Limited (the "Company")          
     (a closed-ended investment company incorporated with limited liability under  
                  the laws of Guernsey with registered number 61765)               

                               Transaction in Own Shares                           

                                     23 March 2017                                 

    On 22 March 2017 the Company purchased the following amount of shares:

      * 550,000 ordinary shares of USD0.01 each in the capital of the Company
        designated as US Dollar shares ("US Dollar Shares") at a price of GBP2.833
        per share.

    These shares will be held as treasury shares.

    Following the above transaction of the relevant US Dollar shares, the total
    number of shares in issue of the Company will be as follows:

    Total number of treasury shares held  by   Number of shares in issue less shares held  
    the Company following the transactions     in treasury following the transaction as    
    described above                            described above                             
                                                                                           
    9,500,000 US Dollar Shares                 201,846,258 US Dollar Shares                

    From 22 March 2017, the total number of voting rights in the Company is
    201,846,258.

    More information on the Company is available at www.vof-fund.com

    Enquiries:

    Jonathan Luu
    VinaCapital Investment Management Limited
    Investor Relations
    +84 8 3821 9930
    jonathan.luu@vinacapital.com

    Joel Weiden
    VinaCapital Investment Management Limited
    Communications
    +84 8 3821 9930
    joel.weiden@vinacapital.com

    David Benda / Hugh Jonathan
    Numis Securities Limited, Broker
    +44 (0)20 7260 1000
    funds@numis.com

    Franczeska Hanford
    Northern Trust International Fund Administration Services (Guernsey) Limited,
    Company Secretary
    +44 1481 745001
    fk26@ntrs.com