It's the reason why the US banned companies from using Huawei networking equipment in 2012 and why the company was added to the US Department of Commerce's Bureau of Industry and Security Entity List in May 2019, following an executive order from President Donald Trump effectively banning Huawei from US communications networks. .

21, 2020: The White House reportedly is planning a 5G summit to combat Huawei.

11, 2020: The US reportedly finds Huawei has backdoor access to mobile networks globally.

28, 2020: UK gives Huawei the green light to build the country's non-core 5G network, with some limitations, while an analyst says Huawei is the world's top 5G phone vendor.

24, 2020: The Pentagon reportedly blocked even tighter rules on US companies selling to Huawei.

16, 2020: Huawei Mate XS foldable phone will reportedly be cheaper and smaller, while images of purported Huawei P40 Pro hint at many camera features.

15, 2020: Huawei shipped nearly 7 million 5G phones last year, and it's reportedly spending $26 million courting developers to build apps for its phones.

Related story: Huawei Mate X: One day with this foldable phone and I'm all in.

31, 2019: Huawei boosted phone sales in 2019 but predicts a "difficult" 2020.

26, 2019: Huawei rebuts suggestions that Chinese state support drove its growth.

15, 2019: Norway's Telenor says Huawei will still play a role in the country's 5G rollout.

5, 2019: UK Prime Minister Boris Johnson takes selfie with Huawei phone after hinting at ban.

3, 2019: Huawei cut US components out of Mate 30 in wake of Trump's ban, and US judge disqualifies Huawei lawyer from fraud and sanctions case, citing conflict of interest.

26, 2019: Huawei and Samsung see jump in phone sales for third quarter, while others see decline.

25, 2019: Huawei unveils its iPad Pro rival, the MatePad Pro, for China.

20, 2019: Huawei Mate X's folding screen costs $1,000 to fix.

12, 2019: Huawei is reportedly giving staff $286 million in bonuses for sticking through US ban.

7, 2019: Huawei founder says the company's coping fine with the US trade ban, but stresses the need for open collaboration.

5, 2019: Hungary will reportedly work with Huawei in building its 5G network.

28, 2019: The Federal Communications Commission says it'll cut off funding to wireless carriers using Huawei and ZTE equipment. .

Huawei Mate X: Our best look yet at the foldable phone.

23, 2019: Huawei launches the Mate X foldable phone in China and celebrates hitting 200 million phone shipments two months sooner than it did last year.

Also, Germany caused an uproar with draft network security rules that would let Huawei work on its 5G networks.

9, 2019: Trump is reportedly ready to approve sales of US goods to Huawei.

2, 2019: Huawei Mate 30 phones apparently lose backdoor access to Google apps.

Related story: Can Huawei Mate 30 Pro's camera beat iPhone 11's.

19, 2019: Huawei unveils the Mate 30 Pro phone, Watch GT 2 and Vision TV during an event in Munich. .

8, 2019: Huawei's Mate X foldable phone could go on sale in October.

3, 2019: Huawei accuses US of using cyberattacks and threats to disrupt its business.

2, 2019: Huawei announces that the Mate 30 series launches Sept.

Aug 27, 2019: US reportedly receives more than 130 requests for Huawei licenses, but none have been issued yet.

Also, new Huawei phones reportedly won't be able to use Android.

23, 2019: Huawei reckons the US ban will cost its phone division $10 billion, and sheds 100 Australian jobs after being banned from country's 5G rollout.

22, 2019: Huawei says it has no plans to launch a Harmony-powered phone. .

19, 2019: US Commerce Department extends reprieve allowing companies to work with Huawei.

18, 2019: Trump says he doesn't want to do business with Huawei due to the "national security threat" it represents.

9, 2019: Huawei unveils its Android replacement "Harmony," while Trump says the US won't do business with Huawei.

7, 2019: Trump administration say it'll ban government from doing business with Huawei, and Republican senators target Google over Huawei project.

6, 2019: Huawei Twitter poll reveals its followers think it's owned by the Chinese government, but people on Facebook disagree.

4, 2019: Huawei will reportedly release a cheap phone powered by its Hongmeng OS in late 2019.

July 30, 2019: Huawei reported revenue surge despite US ban, and Commerce Secretary Wilbur Ross said Trump administration could decide on licenses allowing Huawei sales by next week.

July 29, 2019: Huawei and Google were reportedly working on a smart speaker before ban.

July 25, 2019: Electronics company reportedly "seized" $100M of Huawei goods following US ban.

July 24, 2019: United Arab Emirates telecom says US ban on Huawei isn't an issue for its 5G network. .

Also, the White House gathering tech execs for a meeting where Trump reportedly said Huawei licensing deals will be "timely.".

July 15, 2019: Canada may wait until after October elections to decide on Huawei ban, while the US will reportedly let Huawei sell to companies within weeks.

Also, Huawei reportedly plans major layoffs at its US research labs.

July 9, 2019: US will allow licensed sales to Huawei, but it remains blacklisted.

July 2, 2019: Huawei reportedly isn't sure about using Android in future phones.

July 1, 2019: Trump official says eased Huawei restrictions only apply to widely available products.

June 29, 2019: Trump decides to lift some restrictions on US companies selling to Huawei.

June 27, 2019: Huawei employees worked on Chinese military research projects, according to a report from Bloomberg.

June 25, 2019: US companies are reportedly bypassing the Trump ban on sales to Huawei, while FedEx is suing the Commerce Department over the diversion of Huawei packages.

June 24, 2019: Huawei says it'll increase its 5G investment in spite of US ban, while attorneys for its imprisoned CFO have asked for the US extradition request to be withdrawn.

Also, an FCC commissioner wants Huawei gear out of US networks, and the Trump administration reportedly is thinking about requiring domestic 5G equipment to be made outside China.

June 21, 2019: Huawei unveils a trio of new Nova 5 phones in China as US tensions simmer, and its Mate X foldable phone will reportedly launch by September.

June 18, 2019: Huawei boss predicts $30B revenue hit from US ban, but Microsoft starts selling its laptops again.

June 13, 2019: Chinese ambassador warns Britain that excluding Huawei from 5G sends a "bad signal.".

June 12, 2019: Huawei reportedly moves to trademark its own OS, and apparently chases Verizon for $1B in patent licensing fees.

June 11, 2019: Huawei says it'll need more time to become world's biggest phone seller and reportedly delays announcement of its new laptop indefinitely. .

June 10, 2019: Huawei reportedly asks app developers to publish on its AppGallery store, and a White House official apparently wants to delay the US government's Huawei ban.

June 7, 2019: Facebook stops letting Huawei preinstall its apps, and Google reportedly warns the Trump administration that its Huawei ban creates a national security risk.

Also, Huawei CFO Meng Wanzhou's extradition hearing is set for January 2020.

June 5, 2019: Huawei chairman says company would sign a "no-spy" deal with US.

June 3, 2019: Science publisher IEEE reverses its week-old ban on Huawei scientists reviewing technical papers.

Honor 9X is the last Huawei phone to use Android.

May 28, 2019: Huawei reportedly plans to bring OS to China later this year, internationally in 2020.

May 23, 2019: US reportedly accuses Huawei of lying about Chinese ties.

May 22, 2019: Chip designer Arm ditches Huawei, while Mate 20 X gets dropped from UK 5G launch.

May 1, 2019: Huawei hits 50% growth in phone sales and reportedly has an 8K 5G TV in the works for later this year.

Mate X foldable phone: Here's what it's really like to use.

24, 2019: Huawei unveils the Mate X foldable phone.

21, 2019: Secretary of State Mike Pompeo says countries using Huawei tech pose a risk to the US.

17, 2019: The UK reportedly concludes that using Huawei in 5G is a manageable risk.

Also, Huawei says it'll reveal a foldable phone with 5G in February.

24, 2019: Huawei reportedly says it'll take the smartphone crown from Samsung by 2020.