Modern Welding Co. of California, Inc.

Modern Welding Co. Corporate

Modern Welding Co. Iowa, Inc.

Modern Welding Co. of Florida, Inc.

Modern Welding Co. of Georgia, Inc.

Modern Welding Co. of Kentucky, Inc.

Modern Welding Co. of Texas, Inc. - Houston

Modern Welding Co. of Texas, Inc. - Rhome

Modern Welding Co. Ohio, Inc.