SMARTFLEX double-piping is an oil pipeline system produced by Nupigeco to supply a wide range of
dangerous liquids from combustible liquids to bioenergy, aviation fuel, and automobile fuel. It has
been approved for its stability by major international oil companies such as UL, EN, IP, Kiwa, and
based on the stability, it is a superior-quality piping material that is constructed in many countries
around the world.

MST Co., Ltd. has signed a technical partnership and supply contract with
Nupigeco, Italy, the world's largest double pipe manufacturer, and has been
applied and installed in Korea since 2007.