Siem Offshore (SIOFF) has once again agreed to postpone the delivery of the Offshore Subsea Construction Vessel (OSCV) Siem Daya 1 to Daya Materials until December 15, 2015.

This time the cancelling date was set for December 31, 2015.

Other terms and conditions of the agreement will remain valid and in full force and effect, the Oslo-listed company said Thursday.

In April this year, both parties struck a $120-million deal for the sale and purchase of the 120.8 meters long subsea vessel of Vard design.

The vessel was recently engaged in a cable deployment campaign at MeyGen tidal energy project and November 16 was set as the already extended delivery date.