https://www.reuters.com/article/us-usa-huawei-tech-hisilicon/huaweis-hisilicon-says-it-has-long-been-preparing-for-u-s-ban-scenario-idUSKCN1SN08N

Huawei subsidiary Hisilicon said that it had long been anticipating the possibility that the firm could one day be unable to obtain chips and technology from the United States and had prepared to soften any impact.