ADICO (Asia Polydiamond Company), located in the Republic of Korea, is a superhard materials manufacturing specialty company that was incorporated in January 1999.  ADICO's technical and engineering staff consisting of engineers, many of whom have over twenty to thirty years of extensive HPHT synthetic diamond manufacturing experience.

Since early 2000, ADICO has focused primarily on the manufacture of polycrystalline diamond (PCD) and polycrystalline cubic boron nitride (PCBN) compact products. Since January 2004, ADICO has successfully introduced new PCD grade products ("tougher" and "ultrahard") into the worldwide market. ADICO has also introduced several newly developed (US and Europe patented) products such as laser-weldable PCD, double-side PcBN, and veined PCD products.

Since 2007, ADICO has a majority German ownership. ADICO continues to make every effort to become one of the world's leading PCD and PcBN manufacturers and will continue to develop the most reliable products in order to achieve the highest level of customer satisfaction.

Latest developments are new PcBN grades for hard turing, multi-layer PcBN, ultrafine PCD grades, and patented mesh PCD.