This might appear to play right into the weigo deal. Since China is a mining hub for rare earth elements there might be a conflict of interest to keep the medical industry purchasing chinese mined tantalum cobalt and zirconium by securing an exclusive deal for Silicon Nitride medical devices vs. just wanting to take a peek at the material quality for aerospace applications. Maybe China Just really did take for ever to do nothing on that deal or Amedica was to blame for being flakey.