(1) The Shanghai and Shenzhen 300 Index is an index jointly released by the Shanghai and Shenzhen Stock Exchanges on April 8, 2005 to reflect the overall trend of the A-share market. The purpose of compiling the CSI 300 Index is to reflect the overall situation and operation of stock price changes in China stock market, which can be used as an evaluation standard of investment performance and provide basic conditions for indexed investment and innovation of index derivatives.

The constituent stocks of Shanghai and Shenzhen 300 Index are 108 stocks selected from Shenzhen Stock Exchange and 192 representative stocks selected from Shanghai Stock Exchange, most of which are blue chips. The trend of the constituent stocks of the Shanghai and Shenzhen 300 Index determines the trend of the market.

(2) "Xinhua FTSE China government bond index" is an index composed of a series of H shares or red chips listed in Hong Kong, such as China Petroleum, China Petrochemical and China Mobile, which has the driving force of China's strong economic growth and the concept of RMB appreciation expectation.