SINGAPORE — Shares in Asia-Pacific were mixed on Monday morning as the first trading day of 2021 kicked off.

Mainland Chinese stocks were mixed: The Shanghai composite dipped fractionally while the Shenzhen component rose 0.969%. Hong Kong’s Hang Seng index gained 0.44%.

A private survey released Monday showed Chinese manufacturing activity expanding in December, with the Caixin/Markit manufacturing Purchasing Managers’ Index (PMI) for the month coming in at 53.0. That compared against November’s reading of 54.9. The 50-level in PMI readings separates expansion from contraction.

China’s official manufacturing PMI released Thursday showed the country’s factory activity expanding in December, albeit at a slower pace compared to November’s reading.

In South Korea, the Kospi gained 1.22% as it led among the region’s major markets. South Korea’s markets started trading an hour later than usual on Monday.

In Japan, the Nikkei 225 dipped 0.64% while the Topix index shed 0.85%.

Stocks in Australia rose, with the S&P/ASX 200 up 1.05%.

MSCI’s broadest index of Asia-Pacific shares outside Japan traded 0.54% higher.

Developments surrounding the coronavirus are likely to continue weighing on investor sentiment, as the pandemic rages on globally while vaccines have started being rolled out in some countries.

In Asia, officials in Japan are pondering whether to declare a state of emergency in Tokyo and neighboring areas which have been hit by surging Covid cases, according to Kyodo News. Social distancing measures were also extended by health authorities in South Korea over the weekend, according to local news agency Yonhap, as the country also dealt with a recent jump in infections.

The U.S. dollar index, which tracks the greenback against a basket of its peers, was at 89.931 following its recent bounce from levels below 89.7.

The Japanese yen traded at 103.06 per dollar after strengthening from levels above 103.5 against the greenback last week. The Australian dollar changed hands at $0.7714 following its rise in the previous trading week from levels below $0.765.

Oil prices were higher in the morning of Asia trading hours, with international benchmark Brent crude futures up 0.44% to $52.03 per barrel. U.S. crude futures advanced 0.39% to $48.71 per barrel.