Technical committee vice chairs include: * Abani Samal, member SME, of Pincock Allen & Holt, agricultural minerals. * Aaron McMahon member SME, of Pincock Allen & Holt, ceramics and refractories. * Bradley S. Van Gosen, member SME, of the U.S. Geological Survey, chemical raw materials. * Mark Zdunczyk, member SME, of Continental Placer Inc., construction materials. * Jerry Gauntt, member SME, of Marston, fillers and pigments. * Michael Cheshire, member SME, of Indiana University, sorbents, filters and process aids. * Candace Trimble, Oil-Dri Corp. of America, specialty minerals. Trends and outlook The current U.S. recession, the dramatic decline of the housing industry since 2005 and foreign competition for ceramic imports have greatly affected the ball clay industry.