Regal Holding Co., Ltd. engages in the design, manufacture, and sale of jewellery and precious metal jewellery, wholesale of diamond, and international trade. It specializes in pendants, necklace, rings, bracelets, earrings, brooch and pin, and cufflinks. Its products consist of 925 sterling silver, 9K to 24K gold, brass, and alloys jewellery. The company was founded in 1991 and is headquartered in Taipei, Taiwan.