If a sales contract is signed with the qualification of affiliation, the sales contract violates the mandatory provisions of the law and is an invalid contract.

Legal basis: Article 144 of the Civil Law stipulates that a civil legal act carried out by a person without civil capacity is invalid.

Article 146 A civil juristic act by the actor and the counterpart with false intention is invalid.

The validity of a concealed civil juristic act with false intention shall be handled in accordance with relevant laws and regulations.

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.