At the sprawling Huawei Technologies Co. campus in Shenzhen, the food court's walls are emblazoned with quotes from the company's billionaire founder and CEO Ren Zhengfei. Then there's the research lab that resembles the White House in Washington. Perhaps the most curious thing, though, are three black swans paddling around a lake.

For Ren, a former People's Liberation Army soldier turned telecom tycoon, the elegant birds are meant as a reminder to avoid complacency and prepare for unexpected crisis. That pretty much sums up the state of affairs at Huawei, whose chief financial officer, Meng Wanzhou, who's also Ren's daughter, is in custody in Canada and faces extradition to the United States on charges of conspiracy to defraud banks and violate sanctions on Iran.

The arrest places Huawei in the cross-hairs of an escalating technology rivalry between China and the U.S., which views the company, a critical global supplier of mobile network equipment, as a potential national security risk. Hard-liners in Donald Trump's administration are especially keen to prevent Huawei from supplying wireless carriers as they upgrade to 5G, a next-generation technology expected to accelerate the shift to Internet-connected devices and self-driving cars.