Contact

Talk to our EMS team

Discuss PCB assembly, engineering support or production in China and Thailand. Email us directly, call our team or use the short form below.

NDA available before you share confidential files.

Contact Keep Best

Tell us about your project

Tell us what you need to build or the question you would like to discuss. Our team will help define the next step.

NDA available before you share confidential files.

We can sign a non-disclosure agreement before discussing sensitive designs. Your project information and files are handled confidentially.

Email: sales@keepbestems.com
Phone: +86 189 2521 9610

Keep Best – Simple Project Enquiry

Our locations

Our office and factories

LocationEntity / roleAddress
Shenzhen · engineering & commercial coordinationKeep Best Group headquarters4/F, Building B, Tianyou Weixin, Fuqiao Third District, Fuhai Street, Bao’an District, Shenzhen, Guangdong, China
Jiangmen · manufacturingKeep Best PCB Assembly (Guang Dong) Co., Ltd.5–8/F, Building 6, No. 319 Longxi Road, Jianghai District, Jiangmen, Guangdong, China
Rayong · manufacturingKeep Best PCB Assembly (Thailand) Co., Ltd.7/47 Moo 4 Phana Nikhom, Nikhom Phatthana District, Rayong 21180, Thailand

Privacy and handling

How we respond to your enquiry

Start with a brief overview. You can request an NDA before sending drawings, firmware or other confidential project files.

Tell us what you needShare your product type, project stage and main question.
Connect with our teamWe direct your enquiry to the relevant commercial or engineering team.
Agree the next stepDiscuss the information needed for a quotation, technical review or factory visit.
Protect confidential detailsAsk us to arrange an NDA before sharing sensitive designs.

Project preparation

Helpful information for a manufacturing enquiry.

The checklist helps engineering and procurement prepare comparable inputs.

Concept illustration of an RFQ folder, blank documents and a circuit board