Huawei, which was also charged, this month pleaded not guilty to the accusations, which also include obstructing a criminal investigation into the company. It has said it would never spy on customers, even if asked to do so by Beijing, and has said it is unaware of any wrongdoing by Ms. Meng.

In the first two months of 2019, even as the company faced heightened scrutiny around the world, Huawei’s revenue grew by more than 30 percent from a year earlier, Mr. Guo said on Friday.

“Because of external pressure, we are more closely united internally, so we can face together these pressures imposed on us by the outside world,” Mr. Guo said. “This will make us even stronger.”

Mr. Guo said that Huawei spent nearly $15 billion last year, or 14 percent of its sales, on research and development. But it is unclear whether Huawei will be able to capitalize fully on its investments in equipment using the next generation of wireless technology, or 5G. Washington has pressed allied governments to bar cellular companies from using the company’s 5G gear over espionage concerns.

A review led by Britain’s top cybersecurity agency, released on Thursday, found “underlying defects” in Huawei’s software engineering and security processes, although it stopped short of calling for a ban on the company’s products.

The chief executive of Vodafone, the British carrier, has warned that a full Huawei ban would delay the construction of 5G networks. Few industry observers believe, however, that carriers that are blocked from using Huawei’s 5G gear would be put at a major technological disadvantage as they rolled out new data services.

“We’re talking about an industry with standards, meaning that by and large, everybody’s equipment operates in a similar way,” said Richard Kramer, a founder of the technology research firm Arete. “I think it’s an overstatement to say that the rest of the world won’t be able to build 5G networks without Huawei.”