An unsigned bill of lading is invalid in principle, but if there is other evidence to prove that the consignee has received the goods, or the consignee clearly indicates that it has received the goods and acknowledges that the bill of lading is valid, even if it lacks signature, it can be regarded as valid.

According to Article 490 of the General Principles of the Civil Law, if the parties conclude a contract in the form of a contract, the contract is established when the parties sign, seal or press their fingerprints.

A contract shall be concluded in written form as stipulated by laws, administrative regulations or agreed by the parties. If the parties do not do this in writing, but one party has fulfilled its main obligations and the other party accepts it, the contract is established.