Does the owners' committee need the owners' consent to hire a third-party conference service organization?

Need. According to Article 278 of the Civil Code, the hiring and dismissal of property service enterprises (that is, hiring a third-party conference service agency) is a matter decided by the owners. As the executive body of the owners' meeting, the industry Committee has no decision-making power. Only by organizing the owners' meeting and voting by all the owners can the industry Committee implement the decision-making plan on their behalf.