BB -could you add yellow ocher to your paint colors

there are several colors that are staples that you do not carry any chance of expanding these ?
I would also like to be able to get
ultramarine blue
red o5

yes please!!!

They dont have mars black???

Nope. They use to in the large size i think. I order mine from HunnyBuns in the tiny size which cost me more than B.B. small size paints.