Dec 8 - Plexus Holdings Plc, the London-listed energy engineering services business and owner of the proprietary POS-GRIP method of wellhead engineering, said it had agreed to supply Australian energy company and LNG player Santos with wellhead equipment, mudline casing support systems and services exploration activities in Western Australia. The contract is estimated to be worth around 800,000 pounds ($1.25M) to Plexus.








