The arbitration clause is the basis and premise of arbitration. The arbitration clause must be written and established in any of the following ways:
(1)Arbitration clause in the contract: arbitration clause is set up in the contract;
(2)Supplementary arbitration agreement: an arbitration agreement reached in writing before and after the dispute;
(3)Invitation to arbitration: If the parties have no arbitration agreement, one party invites the other party to settle the dispute by arbitration and sign an invitation to arbitration through APIAC and the other party agrees to arbitration,APIAC will notify both parties to reach an arbitration agreement.