Sources Sought DEPT OF DEFENSE is seeking potential vendors for a Mine grid. This procurement is for Mining Machinery and Equipment Manufacturing (NAICS code: 333131) and falls under the MINING, ROCK DRILLING, EARTH BORING, AND RELATED EQUIPMENT (PSC code: 3820) category. The place of performance is Frederick, Maryland, United States. The primary contact for this procurement is Shanea F Butler (shanea.f.butler.civ@mail.mil, 2028360954) and the secondary contact is Keisha Simmons (keisha.l.simmons.civ@mail.mil, 7035451943). The description states that this notice is looking for potential and capable vendors who could fulfill this requirement.