“Supplier” includes any person who is any of the following:
(a) Blender, as defined in Section 60012.
(b) Enterer, as defined in Section 60013.
(c) Position holder, as defined in Section 60010.
(d) Refiner, as defined in Section 60011.
(e) Terminal operator, as defined in Section 60009.
(f) Throughputter, as defined in Section 60035.