GKM is Korean leading company in the field of environmental resource recycling and specializes in recycling of used tires and valuable metal scrap.GKM rubber blocks and mats are rapidly substituting concrete blocks and asphalt pavement.In the near future, from playgrounds and golf courses to walkways and roadways, you will see GKM products everywhere. GKM dreams of an environmentally sustainable society where all waste is recycled as a valuable resource. GKM uses and recycles - Used tires - Scrap metal containing valuable elements including cobalt GKM produces - Rubber blocks and mats - Cobalt metal compounds (Cobalt sulphate)