I bought a new residential building, building 100 100, and there are no owners' committees.

At first, the property management company took the lead in setting up the owners' committee. But since this is an organization for the benefit of the owners, when the property management company did not take the lead in setting up the industry committee, the owners should set up the industry committee spontaneously. The property management company failed to fulfill its management obligations, provided that your owners paid the management fee. If not, I advise you to communicate with the property management company as soon as possible to see if the situation can be improved. If negotiation fails, you can bring a lawsuit in the local court and change the property management company through legal channels. I hope I am satisfied with my answer ` ~