Shin-etsu chemical. You might have heard of them before, they're one of the largest chemical manufacturers in the world. Showa Denko KK, Kanto Denko Kogyo. Ther

Shin-etsu chemical. You might have heard of them before, they're one of the largest chemical manufacturers in the world. Showa Denko KK, Kanto Denko Kogyo. There are more of course just some examples.