Hycroft Mining is trading 6.2% lower at $20.15; lawsuit claims are a possible backdrop, not a confirmed cause. - Reported September 25, the suit alleges the board concealed a major silver discovery, enabling Eric Sprott to build a 42% stake. Claims are untested; no defense had been filed or public response reported. - No report links the suit to the pre-market decline; major indexes are down less than 0.5%. - A mining conference update is scheduled later September 28.