Kennametal is looking for a permanent CFO with the retirement of Frank Simpkins, who has been in the position since 2006. Simpkins, who has been CFO for about nine years, is officially retiring March 31. Kennametal said in a statement Thursday that Vice President/Corporate Controller Martha Fusco has been named interim CFO effective Feb. 23. " Frank Simpkins has served the company admirably as CFO since 2006," CEO Donald Nolan said in a statement.