Core Viewpoint - The company has developed a mature product system in the field of diamond drill bits, including CVD diamond-coated drill bits and PCD tools currently used in non-PCB applications [2] Group 1 - The company confirmed its research and development in diamond drill bits in response to investor inquiries [2] - The product system includes mass-produced CVD diamond-coated drill bits [2] - PCD tools are currently applied in non-PCB fields [2]