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 153 A civil juristic act that violates the mandatory provisions of laws and administrative regulations is invalid. However, unless mandatory provisions do not invalidate civil legal acts. A civil legal act that violates public order and good customs is invalid.
Article 154 A civil legal act in which the actor colludes with the counterpart in bad faith and damages the legitimate rights and interests of others is invalid.
Article 155 A civil juristic act that is invalid or revoked is not legally binding from the beginning.
Article 156 If part of a civil juristic act is invalid and does not affect the validity of other parts, the other parts are still valid.