Tamron
Lacks transparency. Publishes some details, but doesn't show its workers are paid and treated fairly.
Last researched 3 November 2026 · 5 sources
Japanese maker of camera lenses.
Until Tamron traces its cobalt, gold and tin to the mine, it can't show that the miners who dig them are safe or fairly paid.
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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 high-risk mined materials it can't trace. That alone means a poor grade until it takes steps to trace them.
- 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.
- Checks its own supply chain. Tamron looks for problems in its own supply chain and publishes what it finds. It found unpaid or underpaid wages in 2024 and is fixing it, so it doesn't count against the grade. It's listed below under Confirmed issues.
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 rightsSome of its products are made in China, where unions are heavily restricted, and it has no full supply chain audit.
- 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 cobalt, gold and other conflict minerals to the mine
Red flags 3
- Red flag: No evidence it pays a living wage
- Red flag: Made partly in countries with poor worker rights, without a full independent audit of its supply chain
- Red flag: Relies on high-risk mined materials it can't trace
- 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 Tamron's own disclosure: it makes its products in its own factories.
| Country | Worker rights | Legal minimum wage | Forced labour risk |
|---|---|---|---|
| China | No guarantee of rights | Below a living wage | Moderate |
| Japan | Strong protections | Close to a living wage | Low |
| Vietnam | Systematic violations | Well below a living wage | Moderate |
Evidence
What we found
- Risk across the industry, not a finding about this company: cobalt, tin, tantalum, tungsten and gold mining carry child and forced labour risk (DR Congo, Indonesia), and assembly overtime is widespread.
- Owns or runs its own production
- Relies on metals such as cobalt, gold and tin from artisanal mines where miners, including children, face toxic dust, mercury exposure and deadly tunnel collapses. It hasn't shown any steps to trace these materials to the mine, so it's graded Lacks transparency until it does.
Research notes Tamron makes its lenses in its own factories in Aomori, Japan, Foshan, China (which handles much of production) and Vietnam, where a second plant opened in 2025 to move work out of China; it does not disclose how production is split, so shares are even. Suppliers get ESG surveys and 328 answered conflict minerals surveys in 2024, with smelters expected to be RMAP-conformant, but no smelter list or supplier list is published. It is not an RBA member and makes no living wage commitment.
Confirmed issues 1
Only confirmed problems are listed, and old ones drop off after 10 to 15 years. A problem the company has fully put right no longer counts against it, and nor does one it finds and is fixing itself. How problems are counted
| Last recorded | What happened | Made amends? |
|---|---|---|
| 2024 | Tamron's own checks of its Foshan (China) and Vietnam plants found employees working a lot of overtime, alongside fire prevention gaps (Tamron CSR procurement page, 2025). Source · search the archiveFound and being fixed by the company Not counted against the grade while the company is actively fixing it, because it found and published it itself. | PartlyTamron added fire prevention measures and had industrial physicians monitor the health of staff working long overtime. |
Sources and actions
Sources 5
Show all 5 sources
- Tamron lenses at Camera House · search the archive · Tamron lenses sold through Camera House stores in Australia
Published by Tamron or its owner
- Tamron: Introduction to production sites · search the archive · Own production in Aomori (Japan), Foshan (China, much of production) and Vietnam
- Tamron opens Vinh Phuc factory in Vietnam (2025) · search the archive · Second Vietnam plant began operating in 2025, to employ 1,500 and cut reliance on China amid tariffs
- Tamron CSR procurement · search the archive · Supplier ESG surveys; 2024 conflict minerals survey of 328 suppliers; plant checks led to overtime health monitoring
- Tamron company profile · search the archive · Headquartered in Saitama; 4,977 employees at 31 December 2025
Company details
- Headquarters
- Japan
- Employees
- About 4,977
- Last researched
- 3 November 2026
- Cite this page
- Labour Lens, "Is Tamron ethical? Labour rating", https://www.labourlens.net/brand/tamron, last researched 3 November 2026, accessed [date].
- Method
- Researched with AI assistance against published rules. How we check · What Lacks transparency means
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