LPC said in its just released annual report that it remained its belief that amalgamation was crucial for the long-term viability of New Zealand ports.
The annual report said that work on the merger has taken longer than expected but also that good progress has been made.
LPC chairman Rodger Fisher said the report would be delayed because announced changes in shipping services altered financial information.
Port Otago is restructuring as a result of changes by shipping lines over recent months. The Otago Daily Times has reported that the port has lost business from a range of shipping companies as well as being affected by shipping changes announced in August by Fonterra.