The GBi Citric Acid plant was founded in 1964 by Miles Laboratories.

In the 1990s GBi expanded into production of Sodium and Potassium Citrate, and Enrichment Minerals including Calcium, Magnesium and Zinc Citrate.

Further investment was made in the early 2000s to produce Crystalline Fructose, and in a jv with Tate and Lyle to refine sugar. GBi acquired 100% of the sugar refinery in 2012.