According to the DMTC Web site:
The Defense Metals Technology Center (DMTC) was formed in January, 2007 in order to establish an industrial base capable of affordably producing such strategic metals. The organization addresses the identified needs of the U.S. Military in the development and manufacture of vital defense materials.
The DMTC indicates that the first SMC, held in April of last year, involved more than 110 participants from the USA and abroad. The DMTC Web site goes on to say:
Building on the success of the inaugural Strategic Materials Conference in April 2009, the Defense Metals Technology Center will convene SMC 2010. This event will focus principally on rare earth metals, building on the well-received panel discussion on high performance magnets and a Rare Earth Metals Strategic Sourcing Forum to be sponsored by the DMTC in November 2009.
Unlike the first event in this series, which was invitation-only, the DMTC has apparently opened attendance at this meeting to anyone that registers. More details on the event can be found at the SMC Web site.