HONG KONG (AFP) Asian stocks eased on Thursday (Feb 14) as traders anxiously awaited news from high-level US-China trade talks starting in Beijing.

Negotiators from the two economic superpowers kicked off discussions in the Chinese capital aimed at defusing a row that has already triggered tariffs on billions of dollars worth of exports and threatened to stymie global growth.

Failure to resolve the dispute would initiate a sharp hike in US tariffs on US$200 billion (S$271.5 billion) of Chinese goods, although President Donald Trump indicated this week he could extend his March 1 deadline if progress is made in Beijing.

US Trade Representative Robert Lighthizer and Treasury Secretary Steven Mnuchin met with China's top economic czar Liu He.

Chinese President Xi Jinping plans to meet the US officials later this week, a report in the South China Morning Post said on Wednesday, bolstering hopes for the talks and markets in Asia.

Mr Trump told reporters in the Oval Office on Wednesday that preliminary discussions in Beijing had gone "very well", Bloomberg reported.

But a wide gulf remains on some issues. The US is demanding far-reaching changes to Chinese practices that it says are unfair.

Hong Kong dropped 0.7 per cent, while Shanghai traded flat and Tokyo inched up 0.1 per cent.

Chinese trade figures were due on Thursday.

In Hong Kong, smartphone component maker Sunny Optical dropped 8.7 per cent as a stock exchange filing showed a sharp fall in net profit for last year.

Japanese government data showed the economy expanded in the final quarter of 2018 as the negative impact from a series of natural disasters over the summer receded.

The 0.3 per cent expansion was slightly below forecasts, but followed a 0.7 per cent contraction in the quarter before.

Meanwhile oil prices extended gains after the International Energy Agency reported lower output from Opec producers.

Both the main crude oil contracts posted further gains on the news that the Organization of the Petroleum Exporting Countries in January had largely complied with an agreement to cut output.

Prices were firmed up by US National Security Advisor John Bolton's warning that countries which buy Venezuelan resources including oil "will not be forgotten".

Wall Street had seen relatively tepid growth on Wednesday after Senator Marco Rubio pledged to tax corporate buybacks the same way as dividends.