Hang Seng Indexes, the compiler of benchmark indices for Hong Kong's stock market, has launched two new sustainability indices to tap into growing interest in sustainable investment.The company Monday announced the addition of the HSI ESG Screened Index and the HSI Low Carbon Index, expanding its family of indices to 16. The additions will be effective as of December 6.Both new indices will track the 60-stock Hang Seng Index, albeit with different weightings to reflect the constituents' varied...