br BEIJINGOTTAWA (Reuters) - China warned Canada on Saturday that there would be severe consequences if it did not immediately release Huawei Technologies Co Ltd’s [HWT.UL] chief financial officer, calling the case “extremely nasty”. FILE PHOTO: Meng Wanzhou, Executive Board Director of the Chinese technology giant Huawei, attends a session of the VTB Capital Investment Forum "Russia Calling!" in Moscow, Russia October 2, 2014.