FILE PHOTO: The logo of Huawei Technologies is pictured in front of the German headquarters of the Chinese telecommunications giant in Duesseldorf, Germany, February 18, 2019.    REUTERS/Wolfgang Rattay/File Photo
Huawei invested $15bn in R&D in 2018 and has plans to invest an additional $100bn over the next five years. Reuters

Huawei faces difficult 2020 as US mounts pressure on China's top tech company