NASDAQ Derivatives Markets has carried out a re-calculation of gross return futures and forwards in TGS ASA (TGS) due to an ordinary dividend of NOK 1.25. The re-calculation is effective from the ex-date, July 29, 2021. As a result of the adjustment gross return future and forward prices have decreased by the dividend amount while number of shares per contract was not affected by the adjustment. Adjusted series have received an "X", "Y", "Z", or "Q" in the series designation, and have also received new ISIN-codes which can be found in the attached files. Attachment: https://cns.omxgroup.com/cds/DisclosureAttachmentServlet?messageAttachmentId=1008242