Lacks transparency. Publishes some details, but doesn't show its workers are paid and treated fairly.
Last researched 23 October 2026 · 7 sources
Mexican canned tuna brand of Grupomar, made in Manzanillo, Colima.
Until Tuny traces its fish and seafood to the boat or farm and has the conditions of the people who catch or farm it checked independently, it can't show that they are free and fairly paid.
Other canned and pouched fish brands
Nothing we've rated in canned and pouched fish is better than Lacks transparency yet.
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Why it's graded Lacks transparency
- Not met: Meets 2 of 6 Good requirements.
- Holds the grade back: It relies on fish and seafood that it can't trace to the boat or farm. That alone means a poor grade until it takes steps to trace it and check the conditions of the people who catch or farm it.
- It isn't Harm on record, because there's no serious confirmed problem on its record.
- Lacks transparency is still a poor grade: in supply chains like this, workers who can't be seen to be treated fairly are usually underpaid or unprotected.
Good requirements 2 of 6
- Not met: Pays a living wage, or holds a strong fair-pay certificationLiving wage: no evidence
- Not met: Respects worker rightsJudged on where its products are made: worker rights are poorly protected in Thailand, China and Vietnam.
- Not met: Supply chain independently audited or certified, or at least 80% made in countries with strong labour standards
- Met: No child or forced labour findings or links
- Met: Names the factories or farms that make its products, or is fully certified by a scheme that holds and audits that listMakes its products in its own factories
- Not met: Traces its catch to the boat or farm and has crews' or farm workers' conditions checked independently
Red flags 2
- Red flag: No evidence it pays a living wage
- Red flag: Relies on fish and seafood it can't trace to the boat or farm
- Red flag: Fails its category's raw-material check (means Lacks transparency)
Stars it would earn as Good
None yet. Stars only show on Good companies. About stars
Where it's made
From Tuny's own disclosure: it makes its products in its own factories. Its list covers only part of its range. The rest is shown as where fish and seafood are usually processed.
| Country | Worker rights | Legal minimum wage | Forced labour risk |
|---|---|---|---|
| Mexico | Regular violations | Below a living wage | Moderate |
| ThailandUsual for the industry | No guarantee of rights | Below a living wage | Moderate |
| ChinaUsual for the industry | No guarantee of rights | Below a living wage | Moderate |
| VietnamUsual for the industry | Systematic violations | Well below a living wage | Moderate |
| IndonesiaUsual for the industry | No guarantee of rights | Well below a living wage | Moderate |
| IndiaUsual for the industry | No guarantee of rights | Well below a living wage | High |
| AustraliaUsual for the industry | Strong protections | About a living wage | Low |
| EcuadorUsual for the industry | No guarantee of rights | Well below a living wage | Moderate |
| NorwayUsual for the industry | Strong protections | About a living wage | Low |
Evidence
What we found
- 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 Tuny tuna is canned at Grupomar's own Marindustrias plant in Manzanillo, which employs about 2,000 people, from frozen tuna landed by its own Eastern Pacific purse-seine fleet of six boats and others. The Mexican fishery's MSC certificate was suspended in 2023 and it is now only in MSC's improvement programme. Grupomar publishes no vessel list, labour policy or modern slavery statement, and no independent checks of crews or plant workers are reported. Where its canned salmon, octopus and squid are made is not disclosed.
What independent sources say
| Source | Result | Details |
|---|---|---|
| KnowTheChain | Not covered | Grupomar is not among the companies assessed in the 2026 KnowTheChain food and beverage benchmark. View |
Sources and actions
Sources 7
Show all 7 sources
- 2026 KnowTheChain Food and Beverage Benchmark (BHRRC) · search the archive · List of companies assessed in 2026; Grupomar not included
- Grupomar's Alfonso Rosiñol De Vecchi on Mexican tuna (SeafoodSource, 2024) · search the archive · Six-boat fleet; about 3,000 staff, 2,000 at plant or fishing; MSC certification of the fishery suspended
- Grupomar, dueña de Tuny, invierte 65 mdp en Manzanillo (Expansión, 2017) · search the archive · Over 1,900 people work at the Manzanillo plant; Tuny sold 400 million cans in Mexico in 2016
- Amid dolphin concerns, MSC to suspend Mexican tuna fishery's certification (Undercurrent News, 2023) · search the archive · MSC suspended the Mexican tuna fishery's certification in 2023
- El proceso de producción de atún en conserva en Marindustrias (PR Newswire, 2025) · search the archive · Marindustrias, a Grupomar company, runs Tuny's production plant in Manzanillo, Colima; Grupomar vessels land frozen tuna there
- The Formula for the Success of Grupomar & Tuny products (Abasto, 2020) · search the archive · Main canning plant in Manzanillo; products include canned salmon, octopus and squid; Tuny a 100% Mexican brand sold in Mexico
- Northeastern Tropical Pacific purse seine yellowfin and skipjack tuna fishery (MSC) · search the archive · Fishery managed by PAST (incl. Grupomar) is in the MSC Improvement Program, not certified
Company details
- Headquarters
- Mexico
- Employees
- About 3,000
- Last researched
- 23 October 2026
- Cite this page
- Labour Lens, "Is Tuny ethical? Labour rating", https://www.labourlens.net/brand/tuny, last researched 23 October 2026, accessed [date].
- Method
- Researched with AI assistance against published rules. How we check · What Lacks transparency means
Something missing or wrong?
Grades are opinions based on the evidence listed here. Send us evidence, or a right of reply if you represent Tuny.