"Owing to COVID-19, the market for cleaning products and services saw an upsurge in China last year.

The company attributed the upsurge of net profit, despite the dual impacts of plummeting oil prices and a demand slump amid the COVID-19 outbreak, to effective cost control and high-quality development.

It attributed the profit upsurge to a robust refining business and domestic demand recovery.

"Employment experts and industry insiders said that the job market may see an upsurge of job hopping this autumn — a traditionally high season for recruitment.

- Northwest China's Xinjiang Uygur autonomous region saw an upsurge in its foreign trade during the January-August period, according to Urumqi customs.

Among the notable impacts, our warehouses in Malaysia have experienced a significant upsurge in transportation services for large and heavy cross-border goods from China in recent months," said Zhu Jiashu, deputy general manager of Best Global, the group's international arm.

The pent-up consumption enthusiasm due to COVID-19 is expected to be released around the Spring Festival holiday, when a new round of consumption upsurge will appear, said Song.

"Amid the severe impact of the pandemic on the global economy and the upsurge of unilateralism and protectionism, joint building of the largest free trade zone in the world requires dedication and a sense of duty among young people in the region as well as efforts to inspire their dynamism, creativity and influence," Chi said.

"Our factory produces about 10,000 sets of false eyelashes per day with an upsurge in orders," said Chen Chunjie, general manger at a false eyelash factory, on Wednesday.

The pet-friendly homestay market in Shanghai, as seen from statistics released by vacation rentals platform Tujia, had a notable upsurge in 2022, with the number of such accommodations approaching 30,000, up 127 percent from pre-pandemic 2019.

In Daiji township, the biggest hanfu production town in Caoxian, sales of hanfu sold via e-commerce platforms in the first half of this year witnessed an upsurge, reaching 2.5 billion yuan ($350 million), said Li Tao, Party secretary of the township.

Lu noted that, with the growing smartphone penetration rate in Africa and the increasingly mature mobile payment environment, it is expected that there will be an upsurge in mobile internet business in Africa by 2025.

"Our data is showing an upsurge in bookings at remote, off-season locations - especially for luxury rentals.

In 2016 and 2017, large investment inflows drove the upsurge of AI medical imaging in China, and now leading startups have developed varied AI solutions to improve diagnosis and treatment accuracy and efficiency, including those to help doctors design heart operations and forecast post-operative treatment requirements.

The upsurge of photovoltaic product export volumes is in accordance with the country's growing installed capacity for renewable energy, which reached 728 GW, up 12 percent year-on-year by the end of 2018.

Many Chinese mainland carmakers saw an upsurge in their stock prices on Wednesday.

According to Kou Nannan, senior associate with Bloomberg New Energy Finance's advanced transport sector, the upsurge in new energy vehicles during the first half reflects the "consumption in advance", a response to Beijing's gradual reduction of subsidies.

Li Meng, vice-minister of science and technology, said the world is seeing a new upsurge in research and development activities in advanced 5G technologies.

The trend of "de-dollarization" in emerging markets is showing signs of an upsurge and convergence, Securities Times reported on Friday quoting Zhang Rui, a member of the Chinese Association of Market Development.

As the upsurge of investment ended with the market slump in late February, some young investors, who have just been lured into the market by the stellar returns in 2020 and 2019, have left the A-share market, bearing losses.

The investor enthusiasm came amid a rally in China's stock market since the beginning of the year, with a sharp rebound in daily trading volume and an upsurge in brokers' commission fees.

While the internet upsurge is likely to extend into 2017, high valuations will pose risks for returns and potentially cause a fall in value and the number of deals, said Han Weiwen, managing director of Bain Greater China.