HISTORICAL TIMELINE

• Founded by Mack Salisbury and Bob Levy in 1943.
• First manufacturing facility built in 1946.
• Apache Oil Company purchases MACK ENGINEERING in 1967.
• Mack Salisbury repurchases MACK ENGINEERING from Apache Oil in 1973.
• MACK ENGINEERING builds new facility in 1997.
• MACK ENGINEERING achieves ISO registration in 2003