Mainland media unleashed an exposé on the business dealings of Ling Jihua's nephew and his mother, focusing on a public relations and advertising business that comprised clients across many government agencies, multinational corporations and well-known private firms. Ling took in Linghu Jian after his eldest brother passed away. Linghu is the family's original surname, which some members of the clan continue to use. Linghu Jian and his mother, Sun Shumin, established a series of advertising, public relations and exhibition companies between 2002 and 2005, with many of them bearing the name Qiangshi, which translates as "powerful", according to mainland-based news outlet Caixin. The companies boasted of their "good government relations and strong media ties". According to the report, Sun had a stake in at least 10 companies. The network had a roster of high-profile clients, ranging from top state enterprises, party and government agencies, and major foreign multinationals, it said. In a profile on one company's website, it boasted it served China Mobile, Sinopec, Coca-Cola, Unilever, the Communist Youth League, and China Red Cross Society, as well as Hanban - which oversees the Confucius Institutes. In one recruitment advertisement, an advertising subsidiary claimed it had "extensive cooperative relations with central ministries and commissions", the report said. In another public relations arm's advertisement, it claimed to have "close ties with government agencies and experience in lobbying the authorities". Another subsidiary worked with the Beijing Organising Committee for the Olympic Games in 2008 on its core marketing campaign and received awards for the work. A similar engagement applied to the Shanghai World Expo in 2010. The report also claimed that a company controlled by Linghu Jian and associates, called Zhong Ninjiang and established in March 2009, had contracts to install a security system for Tiananmen Tower and anti-theft devices for the National Museum, the National Grand Theatre, the Chairman Mao Memorial Hall, the National Stadium and two terminals at the Beijing Capital International Airport. Linghu Jian and his mother got into the business after they inherited shares of a company whose owners included a brother-in-law of Ling Wancheng, who is another sibling of Ling Jihua. Linghu and his mother appeared wary of exposing their identities in company filings and registrations. In recent years, shares in the companies have been transferred to a few people believed to be associates of Linghu, Caixin also reported, citing corporate filings.