The Anki and Garanchou are non-house miners, as the Anki is a civilian ship and the Garanchou is a GMG ship.
The Garanchou gets bonuses on alien organisms (if they're even worth mentioning) and cryo organisms, I don't recall for sure if the Kamome gets the same but if I had to guess, I'd imagine it does. Perhaps someone else knows off the top of their head.
The mention of the Okinawa field is redundant as it has been deactivated in favour of Sigma-19.