Timeline

・ Dec 1, 2018: Huawei Chief Financial Officer Meng Wanzhou is arrested in Canada at the request of the United States.

・ Jan 29, 2019: The US government hits Huawei with 23 indictments for alleged trade secrets theft and fraud.

・ March 8, 2019: Huawei sues the US government over a ban on the use of its equipment in US federal agencies.

・ May 15, 2019: Washington puts Huawei on its Entity List, forbidding the company from accessing crucial US technologies without special government approval.

・ May 20, 2019: The US issues a 90-day temporary license, loosening restrictions on business deals with Huawei. However, the license only allows the company to buy US components to maintain its existing networks and smartphone services.

・ May 21, 2019: Huawei founder Ren Zhengfei says the curbs imposed by Washington will significantly harm US jobs and companies, and that the US has underestimated the company's "ability to persevere".

・ June 6, 2019: Licenses granted to Chinese telecom carriers for commercial use of 5G.

・ June 21, 2019: The US places five more Chinese tech companies, including high-performance computer maker Sugon, on its Entity List.

・ Aug 9, 2019: Huawei unveils its in-house operating system Harmony OS, a key move expected to mitigate the influence of Washington's ban on the company's access to Google's Android operating system in smartphones.

・ Aug 19, 2019: The US issues another 90-day temporary license, loosening restrictions on business deals with Huawei.

・ Oct 7, 2019: The US places eight more Chinese tech companies, including artificial intelligence pioneer iFlytek, on its Entity List.

・ Oct 31, 2019: China launches commercialization of 5G services, with the nation's telecom carriers rolling out plans for data packages.

・ Nov 19, 2019: The US extends the 90-day temporary license for the third time, loosening restrictions on business deals with Huawei.

・ Dec 5, 2019: Huawei sues the US Federal Communications Commission, seeking a court ruling to overturn the latter's order banning local rural telecom carriers from using federal funding to purchase the company's equipment and services.

・ Dec 31, 2019: China secures about 3 million 5G mobile subscribers, with some 130,000 base stations entering service.