Former US president Bill Clinton will visit the mainland in September to speak at a conference on global trade and the internet. Mr Clinton will be the keynote speaker at the 'China Internet Summit' in the eastern city of Hangzhou on September 10. Porter Erisman, the vice-president of corporate marketing for event organiser Alibaba.com, said yesterday Mr Clinton would forgo his usual speaking fee because the mainland e-commerce company was supporting the activities of the William J. Clinton Foundation. The former president has earned millions of dollars in speaking fees and book royalties since leaving the White House. 'He's going to talk about his thoughts on the internet and how it's changing global trade,' Mr Erisman said. Mr Clinton would also participate in discussions on China's internet industry during the day-long conference. Mr Clinton has visited the mainland several times, both while in office and since stepping down. In February, he praised the mainland's progress in fighting Aids while in Beijing. On a previous visit, in 2003, he embraced a HIV-positive man at a forum. He paid an official visit to China as president in 1998. Alibaba chairman and chief executive Jack Ma Yun , who met Mr Clinton on the sidelines of the World Economic Forum in Davos, plans to speak at the inaugural meeting of the Clinton Global Initiative, a foundation project centring on global interdependence, in mid-September.