However, whether signing a labor contract or a business contract, it can be paid by a third party.
If it is a commercial sales contract, the contract law stipulates that the third party may perform the debt to the principal creditor, but the debtor in the contract shall bear the third party's liability for breach of contract; In other words, if the other company does not pay, you can continue to claim the creditor's rights from the signatory.
If it is a labor contract, the most typical one may be labor dispatch.