As the early property is about to expire, but the owners' committee has no news, I want to inform the owners' committee in writing.

You mean the property service contract?

If the preliminary property service contract is about to expire and the owners' committee has not yet been established, you can write a report directly to the developer. If the developer has no opinion, your contract can be renewed or re-signed with the developer.

If the price is to be increased, it must be approved by more than half of the owners.

If there is no developer or owners' committee, you should call the owners and tell them to continue to use the previous property service contract when the contract expires. If you want to increase the price, it's still the same. You can ask local neighborhood committees and streets for help.