This is an exchange-traded fund. The full name of ETF is ExchangeTradedFund, which is an open-end fund with indexes, commodities and bonds as investment targets and traded through the stock exchange. The field of lithium battery belongs to a new industry, which is in the development stage as of March 29, 2023, and has high investment value and market prospects. The lithium battery ETF aims to track the overall performance of the lithium battery industry, so as to realize investors' investment and allocation in the industry.