Quality Policy

Quality first, Service best!

Quality PCBs come from our dedicated professional team.

Sunthone manufactures PCBs of the high quality standard as per IPC. Our quality is not an afterthought, but built into each process from PCB engineering to packaging and shipping. All the production processes are continuously monitored and optimized in an effort to increase the quality of your PCBs. And all production processes are directly tied to the CAD system, thus offering a log of full traceability of material and product flow. It is constantly striving towards zero defects through the use of systematic monitoring.

Management Team

Sunthone is a professional PCB manufacturer, producing quick turn PCB prototypes, samples and small orders.

Marketing Manager
Luo Ying
QA Manager
Nan Caihong
PE Manager
Wei Hua
R&D Manager

Detection Equipment

Impedance Test

Copper Weight Test

Ionic Contamination Test


Microsection Test

Peeling Resistance Test

X-RAY Thickness Test


Our products have been ISO900, UL certified, trustworthy

UL (Underwriters Laboratories) is an American worldwide safety consulting and certification company headquartered in Northbrook, Illinois. It maintains offices in 46 countries.

ISO, the International Organization for Standardization, is an independent, non-governmental organization, the members of which are the standards organisation of the 163 member countries. It is the world's largest developer of voluntary international standards and facilitates world trade by providing common standards between nations.

To support relationships between international buyers and Chinese SMEs, we have developed a database with details of all SGS-audited Made-in-China (MIC) suppliers. The database currently contains details of over 10,000 audited suppliers and is continuously being expanded as new suppliers go through the auditing process.