for CZ-9 second stage on Sep 23. Earlier this year, a successful test of the 500 ton YF-130 was carried out in Mar. Both tests were "semi" system in the sense they're not in completed form, eg. lack a noozle. This is a machine translated piece.

Successful test of 220 ton heavy rocket engine

Updated 8 hours ago (GMT+8) · EqualOcean

Financial Associated Press, September 27 - on September 23, the first Semi-system test of the 220 ton afterburning cycle oxyhydrogen engine of the heavy launch vehicle developed by Aerospace Science and technology group was successfully carried out, and the test was a complete success. The main purpose of this test is to obtain the coordinated working characteristics between the core components of afterburning cycle oxyhydrogen engine. The test starts and shuts down normally according to the predetermined procedure, the engine starts quickly, the main stage is stable and normal, and the parameters reach the expected value. The test completely achieved the expected purpose, and the test parameters were the highest level in the history of hydrogen and oxygen engine development in China.