It is official on Merkur, but not on OTC. Pure speculation, but they might not want to PR it on OTC because its not a dividend from SIAF, but a distribution from TRW (or maybe they want to teach the MMs a lesson). They might of course be afraid of the decline in PPS post-distribution as well.
Either way; OTC seems to be dead. Some volume on Merkur, but hardly anything happening on OTC (hence I'm going to whine about the cash dividend being twice pr year and not split over 12 months)