He was likely to require ongoing specialist treatment.
The second victim sustained cuts and bruises to his facial area and a possible fractured hand.
Police arrested and charged a 34 year-old man soon after the incident occurred but efforts to find the second alleged offender had been ongoing for several months.
This morning Taumaranui Police received information that the wanted man was at a local address and arrested the man without incident.
Detective Senior Sergeant Megan Goldie said the Korean fishermen who were victims of the assault were "very relieved".
"This was a very nasty assault which shocked members of the Rodney community.
"This man had connections in parts of the Upper North Island and despite our best efforts, had managed to get away from us until this morning.
She thanked her colleagues in Taumaranui for assisting with the arrest of the man who will appear in the Hamilton District Court tomorrow.