Huawei has filed a lawsuit against the US government over a ban that restricts federal agencies from using its products.
It said the US failed to provide evidence to support the ban, and the firm also rejected claims it had links to the Chinese government.
US Secretary of State Mike Pompeo alleged Huawei is owned by the Chinese government, and has deep connections to their intelligence services and presents a national security threat.
“The US Congress has repeatedly failed to produce any evidence to support its restrictions on Huawei products. We are compelled to take this legal action as a proper and last resort,” Huawei Rotating Chairman Guo Ping said in a statement.
The US has restricted the use of Huawei products over national security concerns.
It has also been lobbying allies to shun the Chinese telecoms firm.
Huawei is one of the world’s largest telecommunications equipment and services providers.
The lawsuit is part of a wider push by the company in recent months to challenge claims its products pose security risks.
Huawei is currently working with Safaricom in providing its services and MTN in 13 African countries.