
About Keep Best
Engineering and manufacturing, connected
Keep Best Group has developed its electronics manufacturing business since 2012. Shenzhen coordination connects with production in Jiangmen, China and Rayong, Thailand, supporting the path from engineering inputs to assembled products.
What we do
One team across the manufacturing handoffs
Our EMS work connects component sourcing, SMT and through-hole assembly, inspection, functional testing and box build. Customers work with engineering, purchasing, production and quality colleagues around the same released design and BOM.
For products that need development before manufacturing, our ODM route covers the agreed electrical, PCB, firmware and validation work. Power electronics and energy-storage development are represented in the group’s product materials.

Locations and entities
Meet the manufacturing network
| Location | Entity / role | Address |
|---|---|---|
| Shenzhen · engineering & commercial coordination | Keep Best Group headquarters | 4/F, Building B, Tianyou Weixin, Fuqiao Third District, Fuhai Street, Bao’an District, Shenzhen, Guangdong, China |
| Jiangmen · manufacturing | Keep Best PCB Assembly (Guang Dong) Co., Ltd. | 5–8/F, Building 6, No. 319 Longxi Road, Jianghai District, Jiangmen, Guangdong, China |
| Rayong · manufacturing | Keep Best PCB Assembly (Thailand) Co., Ltd. | 7/47 Moo 4 Phana Nikhom, Nikhom Phatthana District, Rayong 21180, Thailand |
How projects move
From engineering questions to a repeatable build
| Team | Work with your team on | Typical deliverable |
|---|---|---|
| Engineering | Design files, DFM, prototype learning and test access | Open-item list and production-release package |
| Sourcing | Approved BOM, availability and alternative components | Material plan with approval decisions |
| Production | Assembly sequence, fixtures and work instructions | Build records tied to the released revision |
| Quality | Acceptance criteria, inspection and corrective actions | Inspection/test records and disposition of nonconformities |
Getting to know us
See the factory and discuss the engineering
A supplier discussion is most useful when it connects your product to the people, process and records behind the build. Ask us about a site visit, a manufacturing route or the engineering inputs needed for your project.
Start a conversation
Discuss your manufacturing project
Tell us what you need to build or the question you would like to discuss. Our team will help define the next step.
We can sign a non-disclosure agreement before discussing sensitive designs. Your project information and files are handled confidentially.