Huawei founder Ren Zhengfei says the US government's campaign against the Chinese tech company risks damaging America's international reputation, CNN reported.

"If this US administration always treats other countries, companies or individuals in a ferocious way, then no one would dare invest in the United States," Ren said in an interview Wednesday with CNN at Huawei's headquarters in the city of Shenzhen.

The US government has stepped up its efforts in recent months to persuade allies to block the use of Huawei's telecommunications equipment in 5G wireless networks, alleging that the Chinese government could use it for spying. Huawei has denied any of its products pose a security risk and called on the Trump administration to provide evidence to back up its claims.

"We chose to have our voice heard at this moment because the US government considers us a threat to national security," Ren said. "They have to have evidence. Everybody in the world is talking about cybersecurity and they are singling out Huawei."

"What about Ericsson? What about Cisco? Don't they have cybersecurity issues?" he asked, referring to top Western makers of networking equipment. "Why is Huawei being singled out?"

Ren, 74, has built Huawei up over three decades into a company that makes more than $100 billion in annual revenue and sells about as many smartphones around the world as Apple (AAPL). Its success has made him a billionaire.