Where can I effectively report the hotel supplies bidding 4 years ago?

Local quality supervision department, industrial and commercial administration department, and consumer association.

1. Local quality supervision department: If hotel supplies bid-rigging is suspected of false propaganda, fraud and other illegal activities, you can report and complain to the local quality supervision department.

2. Industrial and commercial administration department: If there are problems such as trademark infringement, counterfeiting, etc. in the labeling of hotel supplies, you can report and complain to the local industrial and commercial administrative department.

3. Consumer Association: Victimized consumers can lodge complaints and safeguard their rights with the local consumer association.