Possibly Asian in origin. CW on-going on top of the SSB voice comms. Voice on 4190 kHz USB mode, CW on 4191 kHz. Reminds me of another log made by another poster on here a bit ago, possibly the same group from Asian fisheries.
4190 kHz USB 4191 kHz CW 4.190 MHz USB 4.191 MHz CW UNID - still going strong at 0012 UTC 28 Nov 2018