https://www.reuters.com/article/us-australia-china-huawei/chinas-huawei-blasts-australian-security-concerns-amid-sino-canberra-tensions-idUSKBN1JD130 >Chinese telecoms equipment maker Huawei Technologies Co Ltd [HWT.UL] said Australian claims it poses a security risk are "ill-informed" as it published an open letter on Monday that threatens to inflame already heightened Sino-Canberra tensions.