TGS ASA

TGS: Mandatory Notification of Trades

Oslo, Norway (29 February 2024) - In February 2019, TGS implemented an Employee

Share Purchase Plan (ESPP) pursuant to which eligible employees can purchase TGS

common shares at a discount through payroll deductions. The ESPP operates in

six-month periods, and at the end of each period, employees in eligible

jurisdictions (United States, United Kingdom and Canada) have the option to

purchase stock at a 15% discount to the market price at the time of purchase.

The plan sets a maximum purchase of shares per employee per six-month period and

ESPP dividends are reinvested in shares.

The following primary insiders received shares from the ESPP purchase on

February 26, 2024, as participants in the ESPP. The schedule attached reflects

the holdings of the primary insiders following the ESPP purchase.

---- Kristian Johansen - 100 shares

---- Tana Pool - 100 shares

---- Josef Heim - 100 shares

---- Whitney Eaton - 100 shares

---- Duncan Bate - 100 shares

---- Linda Santiago - 121 shares

About TGS

TGS provides scientific data and intelligence to companies active in the energy

sector. In addition to a global, extensive and diverse energy data library, TGS

offers specialized services such as advanced processing and analytics alongside

cloud-based data applications and solutions.

Forward Looking Statement

All statements in this press release other than statements of historical fact

are forward-looking statements, which are subject to a number of risks,

uncertainties and assumptions that are difficult to predict and are based upon

assumptions as to future events that may not prove accurate. These factors

include volatile market conditions, investment opportunities in new and existing

markets, demand for licensing of data within the energy industry, operational

challenges, and reliance on a cyclical industry and principal customers. Actual

results may differ materially from those expected or projected in the forward-

looking statements. TGS undertakes no responsibility or obligation to update or

alter forward-looking statements for any reason.

For more information, visit TGS.com (http://www.tgs.com) or contact:

Sven Børre Larsen

Chief Financial Officer

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