China's infrastructure-as-a-service (IaaS) public cloud market is expanding at a much faster pace than other regions in the world, after posting 86 percent year-on-year growth in 2018 to become worth 4.65 billion U.S. dollars, according to market intelligence firm IDC.

China has been the world's second-largest public cloud IaaS market, behind the U.S. since 2016.

Making up nearly 13 percent of the global market, four Chinese cloud service providers rank among the top 10 global IaaS providers by market share, IDC data showed.

In 2014, China's tech giant Alibaba became the only company to squeeze into the global top 10, while three more companies, Tencent, China Telecom and Kingsoft, joined the list last year.

The report says that public cloud services have expanded rapidly in China amid rapid Internet development in the country, strong policy support, a vigorous market and huge investment from service providers.

The global average growth of the IaaS market was 45 percent year-on-year in 2018.

Analysts expect China's IaaS market growth will continue to outpace global market growth for the next five years. Julia Zhuge, a research manager of IDC China, advised the Chinese public cloud service providers to strengthen research and development and raise their capability in offering solutions so as to succeed in the global competition.