South Port has upgraded its earnings forecast and now expects to make between $3.5 - $3.7 million for the year.
This is above the previous forecast of $3.5 million by the operator of the port of Bluff.
Chief executive Mark O'Connor says the port has been busier than normal, with an increase in both cargo and warehousing activity.
It has also reached a favourable fees agreement with New Zealand Aluminium Smelters, which is owned by Rio Tinto.
