(EnergyAsia, October 3) — Keppel Singmarine Pte Ltd, the wholly owned subsidiary of Singapore’s Keppel Offshore & Marine Ltd (Keppel O&M), has secured orders for four offshore support vessels (OSVs) and two tugboats for about S$78 million. (US$1=S$1.7).   The company said the vessels will be progressively delivered to their owners up to first half…