The written repayment date of the IOUs shall be counted from the date when the repayment period expires, and the limitation of action shall be 3 years. If the repayment date is not written, it shall be counted from the date when the repayment date is issued, and the limitation of action is also 3 years.

Article 195 of the General Principles of Civil Law stipulates that in any of the following circumstances, the limitation of action shall be interrupted and recalculated from the date of interruption and the end of relevant procedures: (1) the creditor requests the debtor to perform; (2) The debtor agrees to perform its obligations; (3) The obligee brings a lawsuit or applies for arbitration; (four) other circumstances with the same effect as bringing a lawsuit or applying for arbitration.