Commercial Purpose Self Supporting Chimneys discharge fuel gases to such a height so that they do not create a nuisance to the surrounding environments. These Chimneys are offered in self-supported or guy rope supported type designs that facilitate ease of operation. These Chimneys are provided with base plate, ladder, lightning arrestor and flanges. Commercial Purpose Self Supporting Chimneys are mostly used in boiler exhaust, generator exhaust or gas exhaust in chemical plants and for removal of harmful gases or fumes from the process.