 MEMC's sales topped $1billion in 2004, and it was number three in market share.Through a secondary offering, TPG reduced its share of MEMC in 2005 to 34%, and by the end of 2007, to zero.In 2006 MEMC announced its large-scale entry into the burgeoning solar wafer market, via longterm agreements to supply China-based Suntech Power and Taiwan-based Gintech Energy with solar-grade silicon wafers.