This article is based on a report from the Independent https://www.independent.co.uk/travel/news-and-advice/china-hypersonic-flights-speed-concorde-b2051192.html nowhere does it say they have completed a test flight.
The brand Space Transportation, also known as the company Beijing Lingkong Tianxing Technology, has released an animated video which shows how its proposed “space flights” might look
I’m waiting to see something besides a render of this. Even a photo of this thing on a runway.
Most of the articles are just endless links to secondary sources as well.