The two companies have 50-50 ownership in a new business called Casp (Clough-AMC subsea partnership) to be headquartered in Oslo with offices in Aberdeen, Houston and Perth.

"The new tie-up is the result of nine months of planning," said a Clough source. "Our commitment to building the first vessel was speculative. Moving ahead with the second unit hinged on securing this deal with Aker Marine."

Anne