HOUSTON, March 09, 2021 (GLOBE NEWSWIRE) -- ION Geophysical Corporation (NYSE: IO) announced today that it is proceeding with steps to launch its previously announced rights offering (“Rights Offering”) for its New Second Lien Convertible Notes (“New Notes”) or its Common Stock, as part of its restructuring transactions (the “Restructuring Transactions”) approved by shareholders on February 23, 2021. The Company has filed a registration statement on Form S-1 with the Securities and Exchange Commission (“SEC”). The Company expects to launch the Rights Offering after the Registration Statement is declared effective by the SEC.