Mandatory Notification of Trade

Henry H. Hamilton III, Chairman, sold 400,000 shares
of TGS on Monday
15 November 2010 at a price of NOK 114.6946 per
share.
Following the transaction Mr. Hamilton holds
1,600,000 shares and 80,000 options.
This information is subject of the disclosure
requirements acc. to §5-12 vphl
(Norwegian Securities Trading Act)