The Options Clearing Corporation (OCC) has been informed that Praxair, Inc. (PX) will change its name,
trading symbol and CUSIP to Linde plc (LIN), CUSIP G5494J103, in conjunction with the merger with
Linde plc. As a result, option symbols PX and 2PX will also change to LIN and 2LIN effective at the
opening of business on November 1, 2018.