He said the "bill of attainder" claim, or punishment without due process, would be hard to prove.
With Huawei fighting a battle on multiple fronts, the lawsuit is as much about public relations as it is an effort to clear itself of accusations that it is a security threat.
USA authorities "have hacked our servers and stolen our emails" but have presented no evidence to support their security claims, Guo said.
Washington has also accused Huawei of stealing trade secrets and violating USA sanctions on Iran. -Chinese tensions over technology competition and cyberspying.
"We [were forced] to take this legal action", the company's chairman, Guo Ping, said at a press conference.
The bill that bans Huawei, signed by jobbing TV actor Donald Trump, best known for his appearance as "Waldo's Dad" in a 1994 episode of The Little Rascals, is the same one that brought ZTE to the edge of bankruptcy, before a "deal" allowed them to keep trading in return for a $1bn payment to the US Treasury.
"If we were forced to remove Huawei from the network, we would need to go to the 32 percent of base stations that are now using Huawei for radio and replace all of those with somebody else's technology and then deploy 5G on top of that", Petty told reporters. For example, Huawei CFO Meng Wanzhou, the daughter of Huawei's founder, is now being detained in Canada on behalf of the United States on charges that the firm violated USA sanctions on Iran. Meng remains under house arrest in Vancouver while her lawyers fight the extradition order. Huawei argues the law abuses due process by singling out Huawei with the implication it's a tool of the Chinese government and therefore a security risk.
"We believe that it is perfectly proper and fully understandable for companies to defend their legitimate rights and interests through legal means", Lu Kang said.
The US has yet to present anything close to a "smoking gun" with respect to Huawei as a national security threat and has largely relied on a general suspicion of dodginess to justify its actions. The U.S. government has urged America's allies not to use Huawei equipment.
"The U.S. Congress has repeatedly failed to produce any evidence to support its restrictions on Huawei products".
Chinese technology business Huawei is taking the United States to court.
Song Liuping, Huawei's chief legal officer, said the NDAA "is based on numerous false, unproven and untested propositions". "No contrary evidence has been offered". He did not know if the government would join Huawei's lawsuit.
Guo complained Washington was "sparing no effort to smear" the company but has released no evidence.
Long before Trump initiated the trade war, Huawei's activities were under scrutiny by USA authorities, according to interviews with 10 people familiar with the Huawei probes and documents related to the investigations seen by Reuters. He said that any alleged security risks could easily be managed.
European governments are refusing to accept the USA requests to ban Huawei.
Based in Shenzhen, near Hong Kong, Huawei is a leading developer of 5G along with rivals Nokia of Finland and Sweden's LM Ericsson.
Founded in 1987 by a former military engineer, Huawei overtook Ericsson in 2017 as the biggest global supplier of network gear. It says it supplies 45 of the world's top 50 phone companies and has contracts with 30 carriers to test 5G wireless technology.
Chinese authorities and some industry analysts say Washington might be exaggerating security concerns to limit competition with Western vendors. "Lifting the NDAA ban will give the USA government the flexibility it needs to work with Huawei and solve real security issues".
China's government arrested two Canadians, a former diplomat and a businessman, on December 10 in what was widely seen as an attempt to pressure Canada to release CFO Meng. The communist state this week also accused two arrested Canadians of stealing state secrets in a move widely seen as retribution for Meng's arrest. That followed the Canadian government's announcement Friday that the extradition proceeding for Meng would be allowed to continue.
Some European officials and others cite a Chinese security law requiring companies to co-operate with intelligence agencies. Both Meng and her company have denied any wrongdoing.