'Companies will raise rates, not because the market has recovered, but because the shipping lines have the resolution to do this,' managing director Huang Xiaowen said. 'We have found that if we cut rates, load factors don't increase.'
The company's Hong Kong-listed stock rose the most in almost a month.
The busiest season for sea-cargo box carriers traditionally starts on July 1, when rates go up as European and US retailers stock up for the back-to-school and holiday shopping periods.
Costs for shipping goods have fallen in the past year, partly because retailers are paring orders on weak consumer spending. China Shipping will increase rates to as much as US$650 per twenty-foot container, Mr Huang said.
'It's the only period when they have any chance of making money this year,' said Jack Xu, an analyst at Sinopac Securities Asia Co in Shanghai. 'Still, rates are so low, I doubt that's going to happen.'
China Shipping will raise prices by as much as US$300 per twenty-foot container from July 1, Mr Huang said in an interview in Shanghai on Friday.
'This peak season is going to be very short,' China Shipping chairman Li Shaode said in an interview in Shanghai on Thursday. All 20 of the analysts tracked by Bloomberg covering the shipping line expect it to make a full-year loss. The median estimate is a 2.4 billion yuan (S$512.6 million) deficit.
The container line's stock jumped 9 per cent to HK$2.10 in Hong Kong trading, boosting its gain this year to 79 per cent, compared with a 29 per cent increase for the benchmark Hang Seng Index.
China Shipping will also raise rates on its Asia-South America routes by US$300 per twenty-foot equivalent unit, or TEU, Mr Huang said. Rates on Middle East, Australia and Mediterranean routes will also go up, he added.
'It's considerably lower than before but getting closer to break-even levels,' said Jimmy Lam, a Hong Kong-based analyst at BOC International Holdings Ltd. 'Even so, I doubt the increase may hold for more than two weeks.'
Yang Ming Marine Transport Corp, Taiwan's second-largest container line, said rates dropped slightly in May after an increase in April.
The company plans to start charging its peak-season surcharges on transpacific routes in August, vice-president Winsor Huang said.