How to promote hotel supplies into high-end hotels? Which department should be approached to promote them?

You should go to the purchasing department, but generally high-end hotels have their own fixed suppliers, but it is not ruled out that they will choose your products. The key is the effect and price, and the other is to leave a good impression on others. It’s inevitable to hit a wall when it comes to your first impression. It doesn’t matter if you try a few more times. Maybe you will be impressed by your sincerity!