Legal basis: People's Republic of China (PRC) Bill Law.
Article 7 The signature on a negotiable instrument includes signature, seal or signature and seal. The signature of the legal person or other organization that uses the bill shall be the signature of the legal person or other organization plus the signature of its legal representative or its authorized agent. The signature on a bill of exchange shall be the real name of the party concerned.
Article 8 The amount of a bill of exchange shall be recorded in Chinese capital and figures at the same time, and the two must be consistent. In case of inconsistency, the bill is invalid.
Article 9 The items recorded on a negotiable instrument must conform to the provisions of this Law. The bill amount, date and payee name cannot be changed, and the changed bill is invalid. Other matters recorded on the bill may be changed by the original recorder, and the change shall be certified by the original recorder.