Dongguan Ra&Sun Optics Electronic Co., Ltd., a subsidiary of Tianyi Technology, is a high-tech enterprise specializing in precision mold design, manufacturing, and injection molding. With over 20 years of industry experience, we have invested USD 5 million in advanced equipment, supporting a monthly mold production capacity of around 30 sets, with maximum mold dimensions up to 500mm × 500mm.

Our customer base covers diverse industries including automotive, LED lighting, optics, wearable technology, and consumer electronics. We are trusted by over 30 companies, including Fortune 500 brands. With ISO 9001, ISO 14001, and ISO 45001 certifications, we consistently deliver high-quality products, reliable technical support, and competitive solutions.