Sigma Group Ltd, a China-based PCB solution provider, specializes in providing worldwide clients with high-quality printed circuit board fabrication, assembly and components sourcing services at an affordable price. The company has invested heavily in the worlds most advanced modern manufacturing and test equipment and software, from United States, Japan, Germany, Israel, Italy and Taiwan. We manufacture high-level backplanes, HDI PCB, high frequency PCB, high TG PCB, halogen-free PCB, metal substrates, flex and rigid-flex PCB, along with other high-tech products. Since our establishment in 2009, we have helped thousands of purchasers engineers, and electronic hobbyists, from educational institutions to business, to develop innovative applications transforming their products and the industry in which they operate. Our passion for electronics and other semiconductors has helped us to become one of the best PCB manufacturers in the business. Apart from this, it has prompted us to expand beyond the boundaries of our country and reach the whole world. As a customer-driven PCB manufacturing company, we are committed to adhering to the strictest quality standards in PCB fabrication and assembly. We do our best to ensure our PCB boards meet and exceed specific requirements of each clients.