China Asset Management (Hong Kong), the offshore arm of one of mainland China’s largest asset managers, launched three exchange-traded funds (ETFs) in the city on Thursday, expanding its product line-up as investors seek more diversified strategies amid market volatility.The three products – a Hong Kong high-dividend ETF, a Hong Kong growth ETF and a Hong Kong-US “Halo” ETF – are scheduled to list on the Hong Kong stock exchange on September 30, with trading counters in Hong Kong dollars, yuan...