You can check online banking (website: www.psbc.com can register on the website of the Postal Savings Bank). The savings card or passbook bound by the fund card enables the online banking function, and then the fund trading card enables the online trading function, and then you can log in to the personal online banking on the website of China Postal Savings Network to find the fund.
In addition, you can go directly to the fund company website to check. What fund to buy and which website to go to. The initial password is generally the last 6 digits of the ID card.