Contingent Liabilities

3 Months Ended

Aug. 31, 2012

Contingent Liabilities

NOTE D – Contingent Liabilities

We are defendants in certain legal actions. In the opinion of management, the outcome of these actions, which is not clearly determinable at the present time, would not significantly affect our consolidated financial position or future results of operations. We believe that environmental issues will not have a material effect on our capital expenditures, consolidated financial position or future results of operations.

Pressure Cylinders Voluntary Product Recall

On January 10, 2012, we announced a voluntary recall of our MAP-PRO^®, propylene and MAAP^® cylinders and related hand torch kits. The recall was precautionary in nature and involves a valve supplied by a third party that may leak when a torch or hose is disconnected from the cylinder.

During the quarter ended August 31, 2012, we incurred additional expenses of $1,534,000 related to the recall, bringing the total pre-tax charges incurred to $11,485,000, which represents our best estimate of the total liability. Recoveries, if any, will not be recorded until an agreement is reached with the supplier.