Your trusted partner in mobile device protection
Founded in 2013, COSYU has grown from a small workshop to a leading manufacturer in the mobile device protection industry. We specialize in producing high-quality phone cases and accessories for global brands.
With our extensive manufacturing capabilities and commitment to excellence, we have established ourselves as a trusted partner for businesses worldwide.
10,000+ square meter production facility with Class 10,000 clean-room workshops and automated production lines.
We integrate design, mold making, injection molding, printing, and packaging in-house.
Every product undergoes 100% inspection to ensure zero defects before shipment.
Exporting to 50+ countries worldwide with reliable logistics partners.
The principles that guide our business and drive our success
Every product undergoes rigorous testing to ensure the highest standards.
Continuous R&D in materials and designs to stay ahead of industry trends.
Your growth is our priority. We help your brand succeed in the market.
Eco-friendly materials and processes for a greener future.
Our state-of-the-art facilities equipped with advanced production capabilities
Advanced injection molding equipment for precise and durable case production.
Automated assembly lines with skilled workers ensuring consistent quality.
Advanced testing equipment for rigorous quality control and material testing.
Large warehouse with efficient logistics center for timely deliveries.
Quality assurance and compliance with international standards
Get a free quote for your custom phone case, accessories, or 3C products.