Dolores

• Risk across the industry, not a finding about this company: fishing fleets and processing plants have some of the worst documented forced labour, including trafficked crews held at sea for years.
• Owns or runs its own production
• Relies on fish and seafood from fishing boats and farms, where crews and farm workers, often migrants recruited into debt, have been held for months or years, beaten and denied pay, out of reach of factory audits. It hasn't shown any steps to trace its fish and seafood to the boat or farm or have the conditions of the people who catch or farm it checked, so it's graded Lacks transparency until it does.

Research notes Dolores tuna is canned at Grupo Pinsa's own plant in Mazatlán, Sinaloa, where more than 1,000 women clean fish by hand on 14 lines; Pinsa also has sardine and frozen plants in Guaymas, Sonora. It runs its own fleet of about 20 tuna purse-seiners fishing off Mexico's Pacific coast, which carry observers for dolphin protection, but it does not say what share of its tuna they catch or publish a vessel list, and no independent crew checks are reported. Pinsa was not among the four companies whose Mexican tuna fishery won MSC certification in 2017, and that certificate was suspended in 2023. About 95% of output is sold in Mexico.