China said Tuesday that its investigative process has wrapped up for two Canadians detained in the communist country over vague espionage-related charges, hinting at the possibility of trials, exactly one year since they were first arrested.

Former diplomat Michael Kovrig and businessman Michael Spavor have been languishing in China¡¯s opaque legal system since they were detained on Dec. 10, 2018, in a case widely seen as retaliation for the arrest of a top executive of Chinese telecoms giant Huawei Technologies Co.

The pair¡¯s detention began just nine days after the arrest of Huawei Chief Financial Officer Meng Wanzhou.