Can a STEP file import into MoI with materials assigned?

My client has given me two file formats of a ProE model: OBJ and STEP. When I import the OBJ into Cinema 4D using Riptide, I have the mesh split by materials. Materials that the engineer assigned carry over to C4D.

I’m wondering if there is a way for the same materials to be assigned when I import the STEP file into MoI. Does STEP format support this?

Thanks for any help!

–Randy Geske