SYNCHRON ELECTRICAL SERVICES PTE LTD198202103E · 20 May 1982 · Building and repairing of ships, tankers, off-shore structures and other ocean-going vessels
SYNCHRON MACHINERY ENGINEERING PTE LTD198101425R · 4 Apr 1981 · Building and repairing of ships, tankers, off-shore structures and other ocean-going vessels
SYNCHRON MARINE SERVICES PTE LTD198703863W · 9 Dec 1987 · Building and repairing of ships, tankers, off-shore structures and other ocean-going vessels