About
An OEM factory, not a middleman
Shenzhen Sunning Tension Industrial Co., Ltd., 深圳市水润天成实业有限公司, was founded in 2007 in Bao'an District, Shenzhen. It began in data cables, entered the corporate gift trade in 2012, and has built wireless charging products since 2013. It is a contract manufacturer of 100 to 120 people with no consumer brand of its own.
A contract manufacturer, not a brand
Shenzhen Sunning Tension Industrial Co., Ltd. has made consumer electronics in Bao'an, Shenzhen since 2007, and supplies and customises branded gifts alongside them. We are a contract manufacturer. We do not own a consumer brand, which means we are never on the shelf next to you.
The models in this catalogue were tooled and built for other companies. The moulds exist and can run again, with your logo, your shell and your box. Roughly 80–90% of what we build is exported, mainly to North America, Western Europe and East Asia. Annual sales are USD 5–10 million. Visitors are welcome at the factory.
Three businesses, in order
The company did not start in wireless charging, and the two businesses before it are why the minimum orders are small and the logo work is routine.
- 2007
Data cables
Shenzhen Sunning Tension Industrial Co., Ltd. is founded in Shenzhen to develop and produce data cables. Nineteen years later, cables are still in the catalogue, from USD 0.69 a piece.
- 2012
Corporate gifts
The company moves into the gift trade: printed logos, small runs, custom boxes, and a delivery date somebody else's marketing campaign depends on. That trade is why minimum orders here start at a few dozen pieces instead of a container.
- 2013
Wireless charging
Wireless charging becomes the main line and has stayed the main line ever since.
- Today
The factory now
100–120 people in Bao'an, Shenzhen. 80–90% of output is exported, mainly to North America, Western Europe and East Asia, with rated capacity of 50,000 to 450,000 pieces a month.
The company, on one screen
Shenzhen Sunning Tension Industrial Co., Ltd. is a manufacturer, not a trading house, founded in 2007, with 100 to 120 staff in Bao'an District, Shenzhen.
| Legal name | Shenzhen Sunning Tension Industrial Co., Ltd. |
|---|---|
| Registered Chinese name | 深圳市水润天成实业有限公司 |
| Business type | Manufacturer · OEM/ODM contract manufacturing |
| Founded | 2007 |
| Staff | 100–120 |
| Annual sales | USD 5–10 million |
| Export share | 80–90% of output |
| Main markets | North America, Western Europe, East Asia |
| Minimum order | From 20 pieces |
| Certification | FCC, CE and RoHS documentation held per model |
| Office | 5th Floor, Building A, Gushu, Rui Shangju, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China |
| Factory | 3rd Floor, 25th Road of Furong, Gushu, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China |
We do not publish our customers
Every model in this catalogue was built for another company. You will not find one of their names on this website: not in a logo strip, not in a case study, not in a caption.
We do not publish our customers' names, and that is the same reason we will not publish yours. Send an NDA with your first email and it is signed before we quote.
It is also why there is no client list on this page. Other factories publish one; some of those names are real and some are a photograph of a car in a showroom. Ours is a policy, not a gap.
What we publish instead
Everything on that list can be checked, which is the point.
- The legal entity, in English and Chinese.
- Each stage of production, and what happens at it.
- Three inspection gates, and what is checked at each.
- The certification documents we hold, per model, sent on request.
- Tooling prices and lead times, published before you ask for them.
- Tooled models with real specifications, minimum orders and price bands.
- An open invitation to walk the factory with three working days' notice.
Come and look
You are welcome at the factory with three working days' notice: the mould rack, the PCBA workshop, the assembly line, the inspection bench and the packing tables. The one thing we will not show you is another customer's tooling or artwork, which is exactly the undertaking you are about to rely on.
