NOL repeated its warnings made in August that it "expects to report a loss for the full year in 2011" as global economic conditions have not improved and freight rates continued to remain low while trade demand slowing.
Prior to the third quarter results, analysts are expecting the liner to post a net loss of around $160 million this year, compared to a net profit of more than $460 million last year.
"The liner shipping industry is faced with slowing trade demand, excess capacity and fuel costs that are significantly higher than a year ago," said NOL Group CEO Ng Yat Chung.
"Our urgent priority is to drive down costs and increase efficiency," he added.
The company, around two-third owned by Singapore state investor Temasek Holdings, posted a third quarter net loss of $91 million, compared to a net profit of $282.3 million a year ago. The loss was wider compared to an average analysts forecast of $48.4 million loss.
Its revenue for the quarter ended September 30 fell by 9 percent to $2.2 billion.
Shares of Neptune Orient Lines have declined by about half this year, underperforming the 10 percent fall in the Singapore broader index .