Reference is made to the stock exchange announcements dated 13 February 2013 and 2 September 2013, regarding an agreement between GC Rieber Shipping ASA and Kleven Maritime AS about building a 3D high capacity seismic vessel with ice-class 1A*. The agreement was entered with an option for one additional vessel of the same type.

The parties have today entered a new supplementary agreement of extending the option to the end of January 2014.

For further information, please contact:
CEO Irene Waage Basili, tel.: +47 55 60 68 67, or +47 90 09 86 88
CFO Einar Ytredal, tel.: +47 55 60 68 54, or +47 97 52 01 84

About GC Rieber Shipping:
GC Rieber Shipping's business within offshore/shipping includes ownership in specialized vessels, high quality marine ship management and project development within the segments subsea, ice/support and marine seismic. The group has a unique competence in offshore operations in harsh environments as well as design, development and maritime operation of seismic vessels.

GC Rieber Shipping currently operates 15 advanced special purpose vessels for defined markets within the subsea, ice/support and marine seismic segments, of which 10 are owned by the company. In addition, the company has one subsea vessel under construction for delivery spring 2014, and one seismic vessel for delivery spring 2015.

The company is headquartered in Bergen with a ship management company in Yuzhno-Sakhalinsk (Russia). The company is listed on Oslo Børs with ticker RISH. Further information is available on the company's website www.gcrieber-shipping.no.

This information is subject of the disclosure requirements pursuant to section 5-12 of the Norwegian Securities Trading Act.