(a) On application of a party, the court shall vacate an award if:
(1) the award was obtained by corruption, fraud, or other undue means;
(2) the rights of a party were prejudiced by:
(A) evident partiality by an arbitrator appointed as a neutral arbitrator;
(B) corruption in an arbitrator; or
(C) misconduct or wilful misbehavior of an arbitrator;
(3) the arbitrators:
(A) exceeded their powers;
(B) refused to postpone the hearing after a showing of sufficient cause for the postponement;
(C) refused to hear evidence material to the controversy; or
(D) conducted the hearing, contrary to Section 171.043, 171.044, 171.045, 171.046, or 171.047, in a manner that substantially prejudiced the rights of a party; or
(4) there was no agreement to arbitrate, the issue was not adversely determined in a proceeding under Subchapter B, and the party did not participate in the arbitration hearing without raising the objection.
(b) A party must make an application under this section not later than the 90th day after the date of delivery of a copy of the award to the applicant. A party must make an application under Subsection (a)(1) not later than the 90th day after the date the grounds for the application are known or should have been known.
(c) If the application to vacate is denied and a motion to modify or correct the award is not pending, the court shall confirm the award.