Alibaba founder Jack Ma seen in China after months of absence

Billionaire is thought to have remained outside country after state crackdown on tech sector

Alibaba founder Jack Ma has visited a school in mainland China after months during which he made no public appearances in the country because of a government crackdown on the powerful tech sector.

He is thought to have remained outside China for more than a year from late 2021 after regulators in the country tightened oversight of his businesses due to outspoken criticism from the tech entrepreneur.