Four executives at Filecoin mining firm Shenzhen Shikongyun Technology were slapped with criminal charges in the southern autonomous region of Guangxi for a scheme that raked in more than US$83 million.

Four executives at Filecoin mining firm Shenzhen Shikongyun Technology were slapped with criminal charges in the southern autonomous region of Guangxi for a scheme that raked in more than US$83 million.