The principle of "unknown price", that is, the purchase and redemption prices are calculated based on the net asset value of the fund unit on the day of application; The principle of "amount subscription and share redemption", that is, the subscription is applied according to the amount and the redemption is applied according to the share; In the case of restricted subscription, the subscription fee is calculated by multiplying the rate corresponding to the single subscription application amount by the single confirmed subscription amount; The application for subscription and redemption on the same day can be cancelled before 15:00 on the same day; During the duration of the Fund, the highest proportion of fund shares held by a single fund account shall not exceed 10% of the total fund shares. When the individual holding ratio exceeds 10% of the total fund share due to insufficient subscription during the raising period, redemption during the duration or reinvestment of other investors' dividends, it is not compulsory to redeem but the additional investment is restricted; During the duration of the fund, the fund share subscribed by a single investor plus an open day shall not exceed 10% of the total fund share of the previous open day, and the excess shall not be confirmed.