Holding(s) in Company

Thalassa Holdings Ltd

(Reuters: THAL.L, Bloomberg: THAL:LN)

("Thalassa" or the "Company")

Holding(s) in Company

The Company received on 21 April 2017 a notification from Church House Investments Limited that Church House Investments Limited's holding in Thalassa is of 675,000 shares (3.1%).

Investor Enquiries:

Thalassa Holdings Ltd

Duncan Soukup, Chairman +33 (0)6 78 63 26 89

WH Ireland Limited (Nominated Adviser and Broker)

Chris Fielding, Head of Corporate Finance +44 (0)207 220 1650

Press Enquiries:

Square1 Consulting (Public Relations)

David Bick +44 (0)207 929 5599

www.thalassaholdingsltd.com

Note to Editors:

Thalassa Holdings Ltd, incorporated and registered in the BVI and quoted on AIM, is a holding company currently with positions in the Energy Services and Defence and Homeland Security Industries.