 HOUSTON, March 25, 2021 GLOBE NEWSWIRE -- ION Geophysical Corporation NYSE: IO the Company or ION today announced that as of immediately after 11:59 p.m., New York City time, on March 24, 2021 the Early Tender Time, the Company had received tenders and consents in its pending offer to exchange the Exchange Offer the Companys 9.125 Senior Secured Second Priority Notes due 2021 the Old Notes as set forth in the following table, for newly issued 8.00 Senior Secured Second Priority Notes due 2025 the New Notes and the other consideration described in the Companys Prospectus dated as of March 10, 2021 the Prospectus. 