https://www.reuters.com/article/us-china-smartphones/huawei-cedes-further-ground-as-smaller-smartphone-rivals-swoop-in-idUSKBN2CG0GN >Smartphone shipments at China's Huawei Technologies Co Ltd, once the world's biggest smartphone maker, halved in the first quarter in China, as U.S. sanctions choked its supply chain even as the overall smartphone market rebounded.