It's a small issue, but some of the item names aren't properly capitalized. This is only the case for the ingots, nuggets, and dusts. The plates, gears, coins, glass, and all the other stuff seems to be titled just fine.

Forge Version: 40.2.0
Thermal Expansion Version: 1.18.2-9.2.0.20
ThermalExtra Version: 1.18.2-2.0.3