Negotiable Instruments Act Article 24

A bill of exchange shall specify the following particulars and be signed by the drawer:1. Words expressing it to be a bill of exchange.2. A sum certain in money.3. Personal or business name of the drawee.4. Personal or business name of the payee.5. An unconditional order to pay.6. Place where it is drawn.7. Date of drawing.8. Place of payment.9. Date of maturity.If a bill does not specify the date of maturity, it is deemed to be payable at sight.If a bill does not specify the drawee, the drawer shall be drawee.If a bill does not specify the payee, the holder shall be the payee.If a bill does not specify the place where it is drawn, the place of business, domicile or residence of the drawer shall be that place.If a bill does not specify the place of payment, the drawee's place of business, domicile or residence shall be that place.
中文原文 票據法第24條
匯票應記載左列事項,由發票人簽名。
一、表明其為匯票之文字。
二、一定之金額。
三、付款人之姓名或商號。
四、受款人之姓名或商號。
五、無條件支付之委託。
六、發票地。
七、發票年、月、日。
八、付款地。
九、到期日。
未載到期日者,視為見票即付。
未載付款人者,以發票人為付款人。
未載受款人者,以執票人為受款人。
未載發票地者,以發票人之營業所、住所或居所所在地為發票地。
未載付款地者,以付款人之營業所、住所或居所所在地為付款地。

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