Kim Il Sung University has laid a foundation to produce various quality fuel oil by establishing the pyrolytic process of waste plastic suited to actual conditions of the country.

Pyongyang Han Tok Su University of Light Industry established the rational method for making reclaimed rubber from waste wheel and introduced it into reality.

This method can be applicable to all the reclaimed rubber production processes as it is equipped with thermal screw devulcanizer.

The Pyongyang Thermal Power Complex has produced insulating bricks with white fly ash as main raw material and applied it to keeping warm of boilers.

This technology was highly appreciated at the 34th National Festival of Science and Technology.

On the basis of finding the composition of luster using in artificial leather shoes, the Pyongyang Leather Shoes Factory extracted protein from fur and made a practical luster by mixing it with acrylic resin emulsion.

The technology was highly appreciated at the 16th national inventions exhibition as it reduces the environmental pollution by fur and lowers the production cost of products.