China's humanoid robot makers derive much of their revenue from government-backed training centers that sell training data back to them, raising demand concerns (William Langley/Financial Times)

China’s leading humanoid robot manufacturers rely heavily on government-backed training centers that purchase the robots, collect usage data, and then sell that data back to the makers, prompting analysts to question the sustainability of demand. Unitree Robotics’ Shanghai debut saw its shares jump 460% after raising 6.1 billion yuan ($904 million), valuing the company at over $50 billion.