I was there last Saturday, nice event.
IMO should be: 9741891

That IMO looks very suspect if under construction, perhaps 9733165 would be more likely

Allan

Designed and constructed for Transnet National Ports Authority (TNPA), the 5,500m3 capacity vessel for South Africa.

Royal IHC will hold naming and launch ceremony of the new trailing suction hopper dredger (TSHD) ILEMBE at its shipyard in Kinderdijk on Saturday, 9 May, 2015.

Might be a dredge. - Tom