I Was the Customer.
I Built the Company
I Couldn't Find.
ISUNDEI didn't start as a business plan. It started as a brand founder's frustration — mine. This is the story of how a rejected sample request became a development system now trusted by founders across four continents.
It started with a solar backpack.
Before ISUNDEI, I was a brand owner. I had designed one of the early solar backpack lines — a product that needed real engineering: prototyping from drawings, structural feasibility analysis, low minimum quantities to test the market, and honest answers to the questions every founder asks: Can this actually be built? Will it be efficient to produce? Is this design viable?
In the Fortune 500 world I came from, this was routine. No product reaches a production line before a DFM review. So I took my drawings to bag factories across Guangdong — large ones, small ones, famous ones.
"No order, no sample."
Every factory gave me a version of the same answer. No order? No sample. Many couldn't develop a product from drawings at all. Almost none could analyze whether a design was structurally sound before cutting leather. The industry had enormous production capacity — and almost zero engineering consciousness.
I realized the bag industry was missing an entire profession: the bridge between creative design and actual production. In my previous career, that bridge had a name — Design for Manufacturing. Here, it simply didn't exist.
So in 2014, I built the manufacturer that should have existed.
That year I founded Shenzhen Minray Products Co., Ltd. — ISUNDEI: a manufacturer built specifically to solve the problem I had just lived through. From day one, the company was structured around engineering, not just sewing. We trained craftsmen, built production lines and quality systems from the ground up, and put a DFM review in front of every project — so feasibility is checked before a founder's money is spent, not after.
That structure still defines how we manufacture today. ISUNDEI controls every layer that decides whether a product succeeds: design development, DFM engineering, pattern and material standards, production management and 100% final inspection. Production runs on specialized lines matched to each product category — because a structured leather handbag and a technical backpack are made by different hands, and a serious manufacturer matches the product to the right line, not the other way around.
The method became the product.
Over a decade, the way we work crystallized into a repeatable path: design support → DFM engineering review → prototype development → weekly production updates → 100% final inspection with video approval → DDP delivery → after-sales partnership. In 2026, we gave it a name: the ISUNDEI Launch System™.
DFM wasn't invented here.
It was brought here.
Design for Manufacturing is standard practice in world-class product companies. ISUNDEI's contribution was bringing that discipline — feasibility review before money is spent, documented standards, milestone-based development — into an industry that had never seen it.
Four Principles That Run
Every ISUNDEI Project
Engineering before money is spent
"No order, no sample" is backwards. We review manufacturability first, so your investment goes into a design that can actually be built.
Overseas production should never feel invisible
Weekly updates, photos and videos during development, video inspection before shipment. You always know where your project stands.
Data over guessing
Feasibility, timelines and costs are assessed with engineering analysis — not optimistic promises that fall apart in production.
Serious founders, long-term partnerships
We deliberately work with founders who value quality and transparency over the lowest quote. Most of our clients return for their second product.
Andy Zuo
Andy spent 15 years in engineering management at Fortune 500 companies including Newell Brands and Stanley Black & Decker, taking consumer products from concept through mass production. A certified PMP, he founded ISUNDEI in 2014 after his own experience as a brand owner exposed the gap between creative design and bag manufacturing.
He still personally reviews every DFM report that leaves the company.
Focused on What We Do Best
Today ISUNDEI concentrates on two categories where engineering matters most: genuine leather goods — handbags, travel bags, wallets and small leather goods — and technical backpacks. Serving emerging and scaling brands across the US, UK, Europe and Australia.
Don't Hit the Wall I Hit.
If you have a sketch, a tech pack, or just an idea — start with a development review. We'll tell you honestly whether it can be built, how, and what it will take.
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