You can see it on the AnswerNet.
＜How to find "Corporate Type Pension Plan Document"＞
Log in to the AnswerNet ＞ Click on the “Participant Main Page" tab ＞ Click on "Confirm/Change Participant Information" in the orange frame with your name ＞ Click on "DC Plan Information"
Please refer to the PDF file under "Pension Plan Document of your Plan".