Who We Are
A Sino-German joint venture specializing in premium refrigeration, dedicated to providing global partners with stable, high-performance manufacturing solutions.
Precision · Trust
Experts in Wine Coolers and Specialty Refrigeration
Founded in 2010 in Foshan, China, SUNNAI is a Sino-German joint venture specializing in premium refrigeration solutions. With German engineers stationed on-site for annual supervision, SUNNAI combines rigorous German engineering standards with advanced Chinese manufacturing efficiency. Our 20,000㎡ modern facility supports an annual output of over 150,000 units and generates more than USD 100 million in revenue, serving global markets with confidence.
SUNNAI offers a complete high-end refrigeration portfolio, including wine coolers, beverage coolers, dry-aged coolers, cigar humidors, medical refrigerators, and skincare refrigerators. Each product is designed for precision, durability, and real-world performance, meeting the needs of both lifestyle and professional applications.
Quality and innovation define everything we do. Certified to ISO9001, BSCI, Sedex, CE, GS, NRTL, REACH, and RoHS, SUNNAI partners with global retailers such as Metro AG and Costco. Backed by a national-level laboratory, full-process automation, and strong R&D capabilities, we turn ideas into reliable, market-ready solutions.
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Industry Experience
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Modernized Plant
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Annual Sales
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Dedicated Workers
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Annual Capacity
A German Engineering Mindset
Eco-Friendly and Durable Lingerie Production
SUNNAI was founded on a simple but demanding belief: high-end products are not defined by impressive specifications alone, but by how reliably they perform over time. Long before the company was established, its founders were engaged in years of open, professional dialogue with German industry experts who understood both market realities and manufacturing discipline. Those conversations revealed a recurring issue across the industry — not that technology was insufficient, but that many problems were simply left unresolved.
From the very beginning, SUNNAI set out to do things differently. Instead of optimizing for speed or short-term volume, the company focused on building products that reduce uncertainty in real-world use. This means stable temperature control, consistent performance across batches, and fewer surprises after installation. SUNNAI’s mission is not to sell complexity, but to deliver peace of mind through engineering rigor and disciplined production.
Built for long-term reliability
SUNNAI develops and manufactures refrigeration products for wine storage, beverage cooling, and dry aging applications. These products are designed for demanding environments where temperature stability, structural integrity, and long-term reliability matter more than headline parameters. By addressing key materials, cabinet structures, door systems, and control logic at the design stage, SUNNAI ensures that performance is not dependent on chance or isolated samples.
Equally important is how products are made. SUNNAI integrates extended foaming times, automated vacuum processes, multi-stage leak detection, precision testing, and aging verification into its production flow. These steps are not added later to fix problems, but built in from the start to prevent them. As a result, every unit leaving the factory is validated for consistency, not just functionality.
From foundation to today
SUNNAI officially entered the international market in 2010, establishing its R&D capabilities and certification systems from the outset. Over the years, the company has achieved several industry firsts, including the development of China’s first outdoor wine cooler, the launch of a fully self-developed dry aging cabinet, and the introduction of full-range push-to-open built-in wine cabinets. These milestones reflect not rapid expansion, but steady evolution guided by higher internal standards.
Today, SUNNAI continues to focus on long-term partnerships with brands, distributors, and professional clients worldwide. By placing stricter controls and deeper testing earlier in the process, the company minimizes downstream risk and supports sustainable growth for its partners. SUNNAI’s approach remains unchanged: reduce uncertainty first, and let reliability speak for itself.
Certified for global markets
SUNNAI products are developed and manufactured in compliance with major international certification systems. With CE, EMC, RoHS and ERP compliance for Europe, and additional certifications supporting other regional requirements, SUNNAI products are supplied to markets across Europe, Asia, the Middle East, and North America.
