China Telecom chairman Chang Xiaobing is the latest senior official of a state-owned industrial juggernaut to fall from grace in Beijing’s sweeping crackdown on corruption. The Communist Party’s anti-graft body, the Central Commission for Discipline Inspection, said in a statement on Sunday that Chang was suspected of seriously violating party discipline, a euphemism for corruption. Chang said on the sidelines of the National People’s Congress in March that he earned about 8,000 yuan (HK$9,600) a month after tax. The announcement on Sunday came just four months after a reshuffle at the top of China’s telecom sector, which saw Chang, 58, then chairman and chief executive of China Unicom, swap jobs with Wang Xiaochu, who was chairman of China Telecom at that time. Two sources close to China Telecom said the investigation into Chang related to allegedly corrupt activity during his time at Unicom, where he was the top boss from November, 2004. The investigation also reflects Beijing’s stepped-up efforts to eradicate corruption at big state-owned enterprises, which usually enjoy market monopolies and are believed to be hotbeds for graft. READ MORE: ‘I’ve had a massive pay cut,’ says Chinese power grid boss Dozens of senior SOE officials in the petrochemical, coal and telecom sectors have been investigated since late last year. The CCDI started a new round of investigations into major SOEs in November, 2014. In the long run, the move to clean up the industry will help the state leaders to accelerate the pace of overhauling the important sector Service provider to China Telecom A month later, two Unicom officials, Zhang Zhijiang, a general manager responsible for network construction, and Zong Xinhua, who oversaw e-commerce, were taken away by the CCDI for allegedly “serious violations of discipline”. Investigators also reported back in February that some Unicom officials committed a series of wrongdoings, including colluding with vendors to make illegal incomes; taking advantage of their positions to help relatives secure big contracts; and accepting valuable “gifts” such as shares of companies from clients. READ MORE: Bosses of China Mobile, Unicom and Telecom reshuffled as Beijing revamps state-owned telecommunications firms One businessman whose company provides services to China Telecom said the investigations into Chang could affect morale in the industry and delay planned reforms as more scandals came to light. “[But] in the long run, the move to clean up the industry will help the state leaders to accelerate the pace of overhauling the important sector,” the businessman said. Premier Li Keqiang has been pushing mobile operators to accelerate their 4G roll-out and ramp up network speeds as part of the country’s push to use the internet to make manufacturing and commerce more efficient. The leadership also aims to expand market reforms to give private businesses equal access opportunities in key sectors such as banking, oil and telecom.