What is the fine-grained topic of the following text: Under the leadership of Tuan and his predecessor Nguyen Bac Son, the ministry’s party organization had “committed very serious violations and mistakes, causing serious losses to the state, seriously affecting the operations and privatization of Mobifone Corp., … causing discontent among the public,” the statement said referring to the country’s second-largest mobile phone operator. Only return the topic.
Leadership violations at Mobifone Corp. causing serious state losses and public discontent.