GF Technology, a division of the GF Group that was founded in 1994, specializes in the design and production of industrial-grade optical filters and optical coatings for glass and plastic substrates, such as anti-reflective (AR), hard-coating (HC), and anti-smude coatings. Tooling fabrication, a wide range of secondary processes, such as vacuum coating, 2K mould design, precision templating, and silkscreen printing, are all included in the company's coating capabilities.

The company's main lines of business cover a variety of industries, as well as applications in the fields of life sciences, medicine, consumer wearables, and mobility.