Thai Union Group is a Thailand-based producer of seafood-based food products. It was founded in 1977, and was listed on the Stock Exchange of Thailand (SET) on 22 November 1994.

Thai Union operates worldwide with plant facilities in France, Ghana, Poland, Portugal, Papua New Guinea, Norway, the Seychelles, Scotland, Vietnam, Thailand and the United States. Its business includes tuna, shrimp, sardines/mackerel, salmon, pet food, and value-added products (prepared foods).

In the United States, Thai Group has made several key acquisitions:

• 1997: Completes first overseas investment with the acquisition of Chicken of the Sea, USA's third canned tuna brand.
• 2003: Acquired Empress International Ltd, a frozen seafood importer and distributor in the US.
• 2006: Established Chicken of the Sea Frozen Foods to market frozen seafood in the US. Chicken of the Sea Frozen Foods later merged with Empress International and was renamed Tri-Union Frozen Products, Inc.