We express our gratitude to our customers. This is DIAMOND R.TECH, transforming through challenge and innovation.

Our company, born Keumgang Chemicals in 1990, renamed Keumgang Chemical Co., Ltd. in 1993, and reborn DIAMOND R.TECH in 2008, practices ESG management firsthand. With a clean workplace and an advanced production system,we prioritize customer satisfaction through our technological prowess. We prioritize continuous growth, fostering a positive workplace culture, and human happiness.

We're moving away from the 3D (Dirty, Dangerous, Difficult) image of the rubber industry, transforming our workplace into 3C (Clean, Change, Create) to build a new tomorrow with our customers.

Respecting fundamentals and principles based on quality and technology, DIAMOND R.TECH creates and supplies optimal products and compound rubber under any conditions. We produce and supply compound rubber, chemicals, and Filler Master Batch for automotive, electronic components, industrial, and medical applications, as well as nano-dispersed products, eco-friendly new material batches, and raw materials. We grow together with our customers based on trust.

As environmental dependence on rubber use becomes essential rather than optional, we need our customers' choice in complex Master Batch production to enhance product efficacy.

DIAMOND R.TECH promises to deliver premium-quality rubber compound products suitable for our customers' molded products, striving until our customers are satisfied.
Thank you.