--FILE--Sun Yuchen, founder of Chinese internet blockchain technology company TRON, attends a press conference in Beijing, China, 4 November 2015. Chinese blockchain entrepreneur Sun Yuchen, who canceled a charity lunch with US financier Warren Buffett on Tuesday morning, denied media reports that he was embroiled in illegal fundraising and money laundering. Sun made a statement on his Weibo account that information spread online about his illegally raising funds and laundering is not true. He affirmed that his business, TRON, has complied with Chinese laws and regulations. Sun's cancellation of charity lunch with Warren Buffett has sparked heated discussion online, as the majority of the netizens questioned whether Sun had used his excuse for personal hype and marketing of his business.