A Chinese man pleaded guilty on Tuesday to having obstructed an international human trafficking investigation. Xu Zhang, 31, a New York resident and Chinese national, pleaded guilty to having conspired to tamper with evidence in relation to the probe, announced acting U.S. Attorney for the Middle District of Tennessee, Mary Jane Stewart. He allegedly conspired with his girlfriend and alleged co-conspirator, Gao Xing, who is also a Chinese national, to destroy and hide records that were pertinent to a federal grand jury investigation, according to federal prosecutors. Zhang was indicted in September 2019. His sentencing is on Sept. 15 and he is facing up to 20 years in prison. Prosecutors allege in court documents that Zhang on Sept. 6, 2019, visited Xing in jail while she was the subject of an international human trafficking investigation. Xing told Zhang during the meeting to delete certain information that was material to the probe. …