Carolina High Mast was founded in 1996 as a premier supplier of high mast lowering device systems.  Based in the Fort Worth Region of Texas, Carolina High Mast (often referred to as CHM) is the only manufacturer in the United States to manufacture the steel tower, electrical systems, lowering devices and luminaries.  CHM has installed over 45,000 lowering devices units around the world since 1996.

Carolina High Mast is now a division of CHM Industries, Inc. which includes Keystone (Towers), CHM Sports (Sports Lighting) and Carolina High Mast.