It begin in 1996 when we started to introduce and distributing pre-insulated aluminium duct system, our first aim is to provide an option in air duct system other that traditional sheet metal, since that time we have developed and grew to the point that we need our own brand in order to achieve what we aim in the first place so we create Toprank for our flag.

Its own production in 2004 to join the global market of pre-insualted aluminium duct system, Our panel and accessories production facilities complete with test laboratory located in Shanghai China extend on a surface of 3, 000 square meter area with two production lines that can produce up to 220, 000 square meter per month, after produce the panels will be stock in two warehouse of 1, 800 square meter.

China market that continuously develop is carefully maintain by our distributors and dealers, this market is provide us the support for exporting to more than 9 countries in the world. Today we have a global distributor located in Shanghai China and three world distributors located in New South Wales Australia, Selangor Malaysia and Tehran Iran, Each distributor have warehouse and network to distribute in their own country.