Tse Sui Luen Jewellery (International) Limited is an investment holding company that manufactures, sells, and markets jewelry products in Hong Kong, Macau, Mainland China, and internationally. It operates through Retail Business, Wholesale Business, E-Business, and Other Businesses segments, covering jewelry manufacturing, distribution, franchising, and e-commerce sales, as well as property holding and investment. The company also handles trademarks, cash management, management and administrative services, and logistics and supply chain management. Its product range includes rings, earrings, necklaces and pendants, bracelets, bangles, charms, and men's jewelry. Founded in 1960 and headquartered in Hung Hom, Hong Kong, it is a subsidiary of Partner Logistics Limited.