The 10 Inconvenient Bishops The Vatican Wants Us To Forget – Why? because they do not accept the right of the Chinese Communist Party to tell them what to believe, think or what to say.
The CCP has subjected the 10 bishops in an important new report by Nina Shea to indefinite detention without due process, disappearances, open-ended security police investigations, banishments from their dioceses, or other impediments to their episcopal ministries including threats, surveillance, interrogation, and so-called re-education.
See:
https://www.hudson.org/human-rights/ten-persecuted-catholic-bishops-china-nina-shea
They are:
Bishop Vincent Guo Xijin
Bishop Augustine Cui Tai
Bishop Julius Jia Zhiguo
Bishop Thaddeus Ma Daqin
Bishop Peter Shao Zhumin
Bishop Melchior Shi Hongzhen
Bishop James Su Zhimin
Bishop Joseph Xing Wenzhi
Bishop Joseph Zen Ze-kiun
Bishop Joseph Zhang Weizhu
Seven of these bishops have been detained without due process, with some of them having been under continuous detention for years or decades, while others have been detained repeatedly, up to six times since the agreement’s signing.
The CCP in Beijing targeted these 10 bishops after they opposed the Chinese Patriotic Catholic Association, which requires its members to pledge independence from the Holy See and conform Christian teaching to Chinese communist doctrine.
