1934 First Phase Railway Construction Government Bond Act Article 4

The Government Bond interest is set at six percent per annum, accruing from the day of issuance and repayable once every 30 June and 31 December.
中文原文 民國二十三年第一期鐵路建設公債條例第4條
本公債年息定為六釐,按票面額核計。
自發行之日起算,每年六月三十日、十二月三十一日,各付息一次。

English translation for reference only; the Chinese text prevails. Not legal advice.