Filings were all after the lawsuits' initiation.  Citing a JV with a litigant would be a bold move IMO, not to mention stupid.  Recall the mention made to me of them going public and being involved in an iron ore sands project.  I don't know who or where.

I also encourage everyone to carefully read/reread the linked document.  Some game plan IMO. 
http://www.navial.com/images/Navial_Mineria_6a.pdf