Halcyon Technology Public Company Limited is a Thailand-based manufacturer and distributor of high precision tools and parts. The Company's principal business operation is to produce and sell of cutting tools, jig & fixtures and custom metallic devices. The Company operates in three operating segments, manufacturing and selling of customized polycrystalline diamond (PCD), monocrystalline diamond (MCD), Polycrystalline Cubic Boron Nitride (PCBN), and carbide cutting tools; importing and selling of cutting tools; and manufacturing and selling of high-precision metal fabricated products. Its products are used in industries, such as hard disk drive (HDD), automotive, aerospace, lens, watch & jewelry. The Company's subsidiaries include Halcyon Technology (Philippines), Inc., Halcyon Technology Vietnam Co., Ltd., and others.