STOCK AND LLC INTEREST PURCHASE AGREEMENT among INNOPHOS, INC. AMT LABS, INC. WOODY IV, LLC, DR. SEN-MAW FANG, Ph.D., INDIVIDUALLY AND AS REPRESENTATIVE, AND THE SEN-MAW FANG TRUST, THE THERESA S. FANG TRUST, BING L. FANG, OLIVER L. FANG, THE FANG...