Alumina Trihydrate (ATH)

With production, warehouse and distribution facilities strategically located at Gramercy, Louisiana and Lake Charles, Louisiana reliable supply of ATH is ensured.

Dry Alumina Trihydrate is produced in state-of-the-art dryers at our Port of Lake Charles facility and at Atlantic Alumina in Gramercy. The carefully controlled dryer process ensures high quality, consistent drying for superior product properties. SII’s raw material wet cake alumina trihydrate is sourced from both domestic and international suppliers and we maintain a large inventory to ensure reliable supply to our customers. With favorable inbound ship and barge logistics to the Port of Lake Charles and rail service by the UP, BNSF and KCS railroads, Southern Ionics Port of Lake Charles and Gramercy facilities provide superior logistics options to serve our customers.

Dry Alumina Trihydrate is shipped in bottom discharge hopper cars and pneumatic tank trucks and wet cake is shipped by truck or barge. Dry ATH is available in one metric ton super sacks.

Product Information


  • Raw material for aluminum chemicals production.
  • Flame-retardant filler in plastics and fiber cement board construction products.
  • Specialty alumina production.