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Be the superior manufacturer of high quality printed circuit board with quick turnaround to maximize customer satisfaction and to support the development of Thai electronics industry.


ISO 9001:2015
ISO 14001:2015
ISO 45001:2018
IATF 16949:2016
TLS 8001:2010

Quality Policy

We commit to produce high quality product and ensure on time delivery in which performed by well trained employees and continuously developed quality systems to pursue our ultimate goal, Customer satisfaction.


Environment, Occupational Health and Safety, and Thai corporate social responsibility management system are our parts of business. They are concerned as the management and all employees’ direct responsibility.

Core Value

  • Discipline
  • Responsibility
  • Lookout for Knowledge
  • Honesty and Integrity
  • Harmony
  • Goodwill

Core Competency

  • Customer Oriented
  • Quality Awareness
  • Continuous Working Improvement
  • Individual Learning and Development
  • Cost Awareness
  • Teamwork


  • Strengthen brand image on premium quality
  • Satisfying customer needs
  • Improve production efficiencies and efficiently cost management for market competitive
  • Increase the weight of high-value-added products in our production line
  • Increase sales volume, income, and market share
  • Build employee engagement

Company Profile

Circuit Industries Co., Ltd., also known as “CI”, was established in 1990 with the initial capital of 65 million baht. We are a leading printed circuit board (PCB) or printed wiring board (PWB) manufacturer in Thailand.

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Awards & Certificates

As we, CI, prioritizes the quality work environment, safety, and security of our employees, we received “The Distinguished Workplace on Labour Relations and Welfare” in the ‘small-enterprise without Federation of Labour Union category and “Trophies of Provincial Occupational Health and Safety Award” from the Ministry of Labour.

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Customer Groups

Latest News @CI