Legal basis: Civil Code of People's Republic of China (PRC).
Article 143 A civil juristic act that meets the following conditions is valid:
(1) The actor has corresponding capacity for civil conduct;
(2) the meaning is true;
(three) does not violate the mandatory provisions of laws and administrative regulations, and does not violate public order and good customs.
Article 465 A lawfully formed contract shall be protected by law.
A legally established contract is legally binding only on the parties, except as otherwise provided by law.