This project was revealed to the public on 2nd April this year. They now claim that they are making progresses toward finding gravitational waves.

http://www.globaltimes.cn/content/1122323.shtml

China's Tianqin satellite project has made breakthroughs in the key technologies to detect gravitational waves, the project's leader told a space science conference in Guangzhou.

In-orbit verification can start as progress has been made on inertial sensing, laser interferometry, the drag-free control system and satellite platform, Luo Jun, a physicist at the Chinese Academy of Sciences, also leader of Tianqin projetc, was quoted by the Xinhua News Agency as saying at a symposium of the Xiangshan Science Conference.

Three high-orbit satellites were launched at the end of September, Luo said.

He noted that the four-phase 15 billion yuan ($2.3 billion) project, launched in 2015, should be ready to gauge waves by 2030.