Why Yihai Cup
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Established in 2015, Yihai Cup is a dedicated manufacturer of stainless steel insulated drinkware, offering complete solutions from design to mass production. We specialize in serving mid-to-high-end brand clients and the global gift market, delivering professionally engineered products with premium finishes and reliable performance.
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As drinkware solution experts, we support clients from concept development to final execution-including product design, customization, packaging planning, and full gift-set coordination. With rich experience in corporate and premium gift projects, we ensure every set is cohesive, refined, and ready for the market.
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Equipped with laser welding, automated production lines, ceramic coating, and powder-coating facilities, our factory maintains strict quality control and consistent production standards. Each insulated cup is crafted for excellent temperature retention, durability, and high-end aesthetics.
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Yihai Cup stands out by combining innovation, manufacturing strength, and customization expertise-helping our clients bring better products to life with efficiency and confidence.
Yihai Cup in Global Markets
Export Countries
30+ Countries & Regions
North America, Europe, Southeast Asia, Oceania, Middle East
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Core Markets
U.S. & Europe = 60% of Total Exports
Strong presence in premium gift and brand customization sectors
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Long-Term Clients
100+ Global Partners
Including brand owners, promotional agencies, gift suppliers, and retailers
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Annual Export Volume
3–4 Million Units / Year
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Project Types Served
Brand Customization • Gift Sets • Promotional Projects
Deep expertise in multi-item gift packaging & logo consistency control
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Our Team
Yangbao E – Founder
12 years in drinkware (since 2014); expert in coating & injection molding.
Clover Zhu – Co-Founder
8 years in drinkware (since 2017); specializes in client management and project handling.
Jiacai Li – R&D Engineer
15 years in drinkware (since 2010); blends design with hands-on metal workshop experience.
Qi Zhu – Factory Manager
7 years in drinkware (since 2018); manages full production from manufacturing to shipment.
Quality Control
Vacuum Test – 6 Hours
Ensure absolute vacuum for maximum insulation performance.
Laser Welding Inspection
Check each cup's weld seam for tightness and durability to prevent leaks.
Temperature Verification
Test multiple temperatures before shipment to confirm consistent vacuum performance.
Dimensional QC
Machines + skilled personnel verify product dimensions during metal workshop production.
Functional Testing
Guarantee 12–24h heat/cold retention, salt spray resistance, and drop durability.
Color Consistency Check
Inspect for color deviation to ensure uniform and premium finish.
Customer Case
Case 1 – U.S. Brand Client
Trial order of 1,000 cups grew to 2 high-volume cabinets per month due to R&D support and consistent quality.
Case 2 – French Fashion Brand
Custom-colored cups delivered from sample in 2 days, shipped in 5 days; initial 10,000-unit order with continuous repeat orders.
Case 3 – Brazilian Fashion & Drinkware
Started with 300 units, now expanded to 500,000 annually, supported by strict QC and on-time delivery.
Factory Audits and Certifications
BSCI
ISO90001
FDA
LFGB
CE-ROHS