HOUSTON, May 1, 2013 /PRNewswire/ -- ION Geophysical Corporation (NYSE: IO) today announced that it intends to commence, subject to customary conditions, an offering of up to $175 million aggregate principal amount of its senior secured second lien notes due 2018. The Company intends to use net proceeds from the sale of the notes to repay existing debt and for general corporate purposes, including for potential additional capital contributions to the Company's GeoRXT seabed seismic joint venture, thus improving its financial flexibility. The Company's obligations under the notes will be guaranteed by certain of its domestic subsidiaries. The notes will be sold to qualified institutional investors pursuant to Rule 144A under the Securities Act of 1933 and to certain non-U.S. persons in transactions outside the United States pursuant to Regulation S under the Securities Act of 1933. Any offers of the notes will be made only by means of a confidential offering memorandum. The notes will not be registered under the Securities Act of 1933 or any applicable state securities law, and may not be offered or sold in the United States absent registration under the Securities Act of 1933 and applicable state securities laws or pursuant to available exemptions from such registration requirements. This press release does not constitute an offer to sell or the solicitation of an offer to buy the notes, and there shall not be any sale of the notes in any state or other jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or other jurisdiction. This press release is being issued pursuant to and in accordance with Rule 135c under the Securities Act of 1933.