The U.S. and other developed countries are increasingly taking steps to block products from Chinese telecommunications equipment companies, citing concerns over possible data leaks and cyberattacks. Their main targets are Huawei Technologies, China's largest player and seen as a front-runner in fifth-generation mobile technology, and ZTE, another big name.
Huawei has been at the center of a dramatic series of developments in recent days. Meng Wanzhou, the company's chief financial officer and daughter of the founder, was arrested in Canada at the request of the U.S. government. Meanwhile, the BT Group of the U.K. said it would remove Huawei equipment from its core mobile networks.