United Phosphorus, Ltd., UPL Corporation Limited, and United Phosphorus, Inc. v. Peter Balderas and Martha Balderas, Individually and on Behalf of Their Injured and Minor Children, P.B. and E.B., Injured Minors, and F.B., J.B., J.B., and Y.B., Minor Children, and Jacqueline Balderas, Individually, and Casandra Balderas, Individually