Warren Pushaw has been appointed president of Micro Powders, Inc. (MPI) effective June 1, 2004. A chemist and 22-year veteran of Micro Powders, Mr. Pushaw has served in various positions, most recently as technical director, vice president and general manager.      As president, Mr. Pushaw will be responsible for the growth and performance of MPI including all domestic and international operations. Mr. Pushaw will also serve as chief operating officer in his new capacity.      “I am confide...