Why did the US japan and EU impose economic sanctions on china?

The US, Japan, and the EU imposed economic sanctions on China primarily in response to human rights violations, particularly concerning the treatment of Uyghurs in Xinjiang and the crackdown on pro-democracy movements in Hong Kong. Additionally, concerns over China's aggressive military actions in the South China Sea and its trade practices, including intellectual property theft, have contributed to these sanctions. These measures aim to pressure China to adhere to international norms and uphold human rights standards.