We were in contact with you in 2023 concerning our investigation into China’s seafood processing industry. We are contacting you now regarding our ongoing investigation into aquaculture and the global fishmeal and fish oil industry, which has uncovered an array of industry-wide environmental and human rights concerns. These concerns date from between 2018 and the present, and they pertain to events or conditions on land or at sea. 

New England Seafood International has received seafood raised by the Turkish aquaculture company Kılıç Deniz, according to a 2025 report by Desmog, an investigativ…

Sainsbury’s buys farmed seabass from New England Seafood International (NESI), and Kılıç Deniz is one of NESI’s upstream suppliers. All Sainsbury’s own‑brand farmed seabass is required to be certified to the Aquaculture Stewardship Council (ASC) Standard, including requirements on feed sourcing, traceability, and independent audit.

NESI has confirmed, through due diligence and written assurances from Kılıç Deniz, that seabass supplied into Sainsbury’s own‑brand supply chain was produced in line with ASC requirements and that the feed used for fish supplied to Sainsbury’s was not sourced from…

Since we were last in contact with you, our ongoing investigation has uncovered further supply chain information which we wanted to bring to Sainsbury’s for comment or clarification.

Lyons Seafood supplies Sainsbury’s own-brand products containing shrimp, such as Sainsbury’s Taste the Difference Large King Prawns, according to Sainsbury’s website. Between 2023 and 2026, the Ecuadorian aquaculture company Operadora y Procesador de Productos Marinos (Omarsa) sent dozens of shipments of frozen shrimp products to Lyons Seafood, according to trade data. 

Our supply chain research, which includes…

Thank you for sharing further context on your investigation into fish‑feed supply chains.

Sainsbury’s recognises that feed is an important component of aquaculture supply chains and that marine‑ingredient sourcing takes place within complex, global systems. Our focus is on ensuring that the seafood we sell is produced in line with recognised standards and clear expectations on responsible sourcing.

Our approach is to manage these considerations through a combination of recognised certification standards, risk‑based due diligence, supplier engagement and ongoing review. For own‑brand farmed s…