Total Voting Rights

3 January 2012

THALASSA HOLDINGS LTD

(AIM: THAL)

("THAL" or the "Company")

TOTAL VOTING RIGHTS

For the purposes of the Financial Services Authority's Disclosure and Transparency rules, the Company announces that as at 3 January 2012 the total number of ordinary shares of USD0.01 in issue is 11,188,707 of which 1,462,000 are held in Treasury.

The figure of 9,726,707 ordinary shares may therefore be used by shareholders in the Company as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change in their interest in, the share capital of the Company under the FSA's Disclosure and Transparency Rules.

For further information please contact:

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

Thalassa Holdings Ltd

Antony Legge/Tessa Smith Tel: + 44 (0)20 7776 6550

Daniel Stewart & Company plc

www.thalassaholdingsltd.com

Notes to Editor:

Thalassa Holdings Ltd, incorporated and registered in the BVI in 2007 and listed on AIM in July 2008, is a holding company with a focus on Marine Seismic operations.