GC Rieber Shipping has today launched an offer document for the previously announced voluntary offer for Sea4. The offer period starts today and closes on 20 August 2009. For complete information regarding the offer, please refer to the offer document. The offer document will be made available on the webpages of GC Rieber Shipping and Carnegie ASA and is being mailed to eligible shareholders in Sea4 registered as of 4. August 2009.