How about Huawei giving a boric acid glass cup?

High borosilicate glass has high purity, good temperature resistance and excellent denaturation resistance.

It is a good material for high-end glass products.

High boron glass is more heat-resistant than ordinary glass and does not feel hot. Boric acid is added to make the glass stronger, brighter and harmless to people.

The thermal expansion coefficient of borosilicate glass is very low, which is about one third of that of ordinary glass.