Sayed Jamil Kadhem was released on 27 July after completing his six-month sentence.
Alagie Abdoulaye Ceesay, managing director of the Gambian Radio Station Teranga FM, has been released on 13 July.
The Chinese authorities have ratcheted up their crackdown against human rights lawyers and activists, using draconian state security charges to detain at least three people.
More than 100 Chinese human rights lawyers and activists have been targeted by police in a nationwide crackdown which began on Thursday 9 July. At least 25 are feared still detained by police.