The four men who were found guilty of a total of 30 charges relating to the sinking of the Tongan ferry, the Princess Ashika, will be sentenced today.
They are the former Shipping Corporation of Polynesia's chief executive, New Zealander John Jonesse, captain Maka Tuputupu, first mate Semisi Pomale and a former transport ministry director, Viliami Tu'ipulotu.
The corporation was also convicted.
The four men could face jail terms of up to ten years for the manslaughter charge, while the shipping company is likely to be fined.
Seventy-four people died in the 2009 tragedy.