MIM (and CIM) can be simulated with Moldflow (though admittedly, this is not nearly as mature and full featured as the thermoplastic injection molding simulation, which is a function of where the MIM industry is compared to thernoplastic inj. molding; (smaller scale and less standardisation --> harder to develop a material database).
But we do have the process under Powder Injection Molding in the 3D solver.

We also have an Autodesk University presentation on this topic (slightly older but still relevant I believe). https://www.autodesk.com/autodesk-university/class/Metal-Injection-Molding-Moldflow-2016
Lastly ... there is the good old online help: https://help.autodesk.com/view/MFIA/2023/ENU/?guid=GUID-5318CDAA-0829-4559-B0E7-3EC5DBF86EF7
Hope this helps
Hanno van Raalte,
Product Manager - Injection Molding & Moldflow products