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China Unicom received approval from Ministry of Industry and Information Technology to use the frequency band of 3500-3600MHz for the launch of 5G system trial nationwide in Mainland China

China Unicom held "5G-powered Smart Winter Olympics" presentation to announce three major plans under its Smart Winter Olympics Strategy


China Unicom-led's first international submarine optical fibre cable across the South Atlantic commenced in commercial operation, being the first inter-continental high-speed direct submarine cable connecting Africa and South America across the South Atlantic


China Unicom Yunnan was officially included in the list of "Double-hundred Action", State Council's proposal for State-owned Enterprise Reform, and started to openly recruit privately-owned enterprises to become operation partners


Yunlizhihui Technology, a joint venture established with Alibaba, launched to provide government and enterprise customers with customised application software services

China Unicom established 5G Innovation Lab to drive 5G in vertical applications and advance promotion in scale


China Unicom implemented the national policy of the cancellation of domestic mobile data "roaming" charges, whereby provincial local data was upgraded to nationwide data (excluding Hong Kong, Macau and Taiwan data) for existing and new mobile subscribers


China Unicom completed IPv6 upgrades for its official web portal to enable visits compatible with IPv6


China Unicom officially launched "eSIM - One Number in Two Terminals" service in 6 cities, including Shanghai


China Unicom and Tencent signed strategic agreement to roll out cooperation in Big Data applying in various areas including information security and anti-financial fraud, etc.

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