Social compliance standard
Process and system management
Restricted substance control
Material regulatory compliance
Protection performance validation
Stable and qualified materials
Social compliance standard
Process and system management
Restricted substance control
Material regulatory compliance
Protection performance validation
Stable and qualified materials
Social compliance standard
Process and system management
Restricted substance control
Material regulatory compliance
Protection performance validation
Stable and qualified materials
End-to-end custom development
Rapid prototype turnaround
Custom mold & structure solution
Stable capacity for scale orders
Inspection through every stage
Retail-ready presentation options
End-to-end custom development
Rapid prototype turnaround
Custom mold & structure solution
Stable capacity for scale orders
Inspection through every stage
Retail-ready presentation options
End-to-end custom development
Rapid prototype turnaround
Custom mold & structure solution
Stable capacity for scale orders
Inspection through every stage
Retail-ready presentation options
Certifications & Compliance
We build with verified systems, compliant materials, and responsible manufacturing standards to support global brands and buyers.
ISO 9001 Certified
Quality management system for stable production and process control.
ISO 14001 Certified
Environmental management practices that support responsible manufacturing.
amfori BSCI Audited
Social compliance and audited manufacturing standards for global supply chains.
RoHS Compliant
Material compliance aligned with restricted substance requirements.
REACH Compliant
Material solutions developed with attention to relevant chemical compliance expectations.
Apple MFi
Accessory program support for Apple ecosystem compatibility-related projects.
GRS Certified
Support for recycled material solutions and sustainability-focused development.
About Us
Shenzhen Runsun Development Co., Ltd.
Runsuncase is a professional manufacturer of phone cases, tablet cases, and protective accessories for consumer electronics. We combine product development, production, and sales to support OEM, ODM, and private label projects for brands, retailers, wholesalers, and distributors worldwide.
Backed by advanced manufacturing equipment, automated production lines, and precision testing systems, we provide dependable quality, flexible customization, and stable bulk production. Our factory has passed ISO9001 and ISO14001 certifications and was recognized as a high-tech enterprise in 2018.
Customization Capabilities
We provide flexible phone case customization solutions for brands, retailers, wholesalers, and distributors. From mold options and appearance design to functional features and material selection, we help turn your ideas into market-ready products.
Customize
We offer a wide range of proven public molds for Apple and Samsung models, along with flexible custom mold development services. Whether you need faster market entry or a fully unique product structure, our team can support the right solution for your business.
Design
We provide appearance customization based on your artwork, samples, or design concepts. From logo placement and print effects to metal camera rings and decorative details, we help transform your brand identity into a distinctive product design.
Feature
We support a variety of functional customization options, including magnetic compatibility, kickstand structures, grip-enhancing details, anti-fingerprint finishes, and skin-feel textures. Brand elements can also be integrated into the functional design for stronger product differentiation.
Material
We help you choose the right materials based on your market needs, including drop resistance, scratch resistance, anti-yellowing performance, and long-term durability. With years of material application experience and testing data, we make material selection more efficient and reliable.
Core Strengths
Practical manufacturing strengths that support faster development, stable quality, and flexible customization.
3D Product Display
Immersive 3D presentation for clearer product understanding.
Flexible Custom Combinations
Mix materials, camera rings, MagSafe features, patterns, and accessories with flexibility.
Verified Materials
Tested materials for durability, scratch resistance, and daily performance.
Global Shipping Experience
Export-ready support with reliable packaging and shipping coordination.
OEM & ODM Development
Fast development support from concept to sampling and production.
Strict Quality Inspection
Every order is inspected before shipment for stable and consistent quality.
Custom Development
From mold development and product design to packaging, we turn your ideas into market-ready products. Backed by 23 years of industry experience, we provide flexible customization solutions for bulk orders with reliable quality, on-time delivery, and competitive pricing.
Open
CASE
From concept development to mass production, we help brands turn ideas into market-ready phone cases with flexible customization and reliable manufacturing support.
Our Products
Welcome to Runsun, where we pride ourselves in being one of the leading phone case manufacturer names. We offer phone cases to customize solutions for your business that resonate with your target audience. We offer 3D product displays, DIY combination designs, OEM/ ODM designs, and much more.
Client Testimonials
Listen to what our customers have to say
Brands We Follow & Support
We follow leading brands across consumer electronics, fashion, and mobile accessories.
News
Ready to Build Your Custom Phone Case Line?
Work with a reliable OEM/ODM phone case manufacturer for custom design, fast sampling, and stable mass production.