Effective December 1, 2017 the administration of the Praxair Pension Plan has transitioned to Aon. You may call the Praxair Pension Service Center at 1-877-259-2636 or visit https://pension.hewitt.com/praxair to inquire about your pension benefit. Pension specialists are available Monday through Friday (excluding most New York Stock Exchange holidays) between 9 a.m. and 5 p.m., ET.