1. There are two reasons for Huaan SSE 18ETF fund codes: when the same fund has two modes of front-end charging and back-end charging, it will specify a code respectively.

2. In actual operation, there are two ways to collect subscription fees for open-end funds, one is called front-end fees, and the other is called back-end fees. Front-end charge refers to the payment method of paying the subscription/subscription fee when subscribing and purchasing funds.

3. The back-end fee is designed to encourage you to hold the fund for a long time. Therefore, the rate of back-end fee will generally decrease with the increase of the time you hold the fund. Some funds even stipulate that if you can sell the fund after holding it for a certain period of time, the back-end fee can be completely waived. To remind you, the back-end charges and redemption fees are different. Back-end charges, like front-end charges, are all a kind of subscription fees, but they are paid not when buying funds but when selling them. Therefore, if you buy a fund with back-end charges, you must pay the subscription fee in the form of back-end charges in addition to the redemption fee when you sell the fund.