Sigma Engineering is a well-established brand that specializes in closed-loop etchant and copper recycling systems for PCB manufacturing. With a rich history dating back to 1978, Sigma has consistently delivered high-quality engineering and consultancy services to the process industry. Over the years, the company has expanded its expertise and acquired diverse skills to meet the growing demands of its customers.

In the 1970s, Sigma's Innovation department was formed, comprised of a group of talented scientists. This department played a pivotal role in the development of the Mecer technology, specifically designed to regenerate alkaline etchant for a customer project. This innovative technology has since become a cornerstone of Sigma's business.

With an impressive track record of success, Sigma has continuously evolved and taken on new challenges to meet the needs of its clients. Today, they offer an extensive portfolio of products and services, leveraging cutting-edge technology in the field. With a commitment to sustainability and a vision for the future, Sigma Engineering is a trusted partner in the PCB manufacturing industry