Can ppo plastic be used for the material inside the high temperature kettle?

Would you like to ask if ppo plastic can be used for the material inside the high temperature kettle? I bought a kettle recently and I opened it and I was dumbfounded. There is a large piece of plastic inside, and the spout is glued. Because it is an imported smeg, the bottom of the kettle is not marked with the serial number of the material. I asked the customer service and responded after a long time It’s made of ppo.