Billionaire financier George Soros has opened a Hong Kong office for his hedge fund, The Wall Street Journal reported Monday, as the industry eyes Asia for growth. A spokesperson for Soros Fund Management confirmed the company opened the Hong Kong office on Monday, but declined to give further details, the Journal reported, ending months of speculation. The Hungarian-born American philanthropist no longer actively manages the 27 billion-US-dollar fund, but remains chairman of the company. He made headlines last month after donating a million US dollars to a campaign aimed at legalising marijuana in California, which has since been rejected by the US state's voters. Soros once famously made more than one billion US dollars by betting against the British pound. During the Asian financial crisis of 1997 he was accused by the then Malaysian Prime Minister Mahathir Mohamad of being responsible for the currency turmoil. 