The International Tin Association (ITA) is pleased to announce Aurubis Beerse NV’s fourth Tin Code Report, covering 1 January – 31 December 2024. The Belgium-based recycler and refiner of complex, low-grade secondary materials is a leading global producer of recycled tin, delivering a range of non-ferrous metals and minerals. 

This latest report highlights Aurubis Beerse’s continued collaboration with the Tin Code and strong Environmental, Social, and Governance (ESG) performance against its 72 standards. Notably, the company demonstrates very strong conformance amongst the 10 Priority Standards: https://tincode.org/principles-and-standards/. Building on previous annual reports, it demonstrates continuous improvement, strengthened alignment with international ESG expectations, and reinforces leadership in sustainable tin production and global tin supply chain transparency. 

Key highlights 

For full details of performance against each Principle and Standard, please access the Tin Code Report here. 

The International Tin Association (ITA) is pleased to announce that Cornish Tin, a Cornwall-based tin and lithium exploration and development company and ITA E&D Group Member, has committed to implementing the Tin Code ESG-sustainability standard for its flagship projects in West Cornwall, UK: the Great Wheal Vor Project and the Tregonning Project.

This demonstrates Cornish Tin’s strong commitment to responsible mining, sustainable development, and positive impact on local communities and the tin supply chain. By aligning with the Tin Code, Cornish Tin supports the global movement towards more sustainable and transparent practices in the mining and metals sector.

Sally Norcross-Webb, Founder and CEO of Cornish Tin, said: “Our ambition has always been to build a modern mining company that reflects the highest standards of environmental, social, and governance expectations. Committing to the Tin Code reinforces our belief that sustainability must be embedded from the earliest stages of project development. Cornwall has a proud mining heritage, and we are determined to ensure that its next chapter is defined by responsible practices, transparency, and long-term value for local communities.”

Susannah Costley-White, Tin Code Programme Manager at ITA, added: “We are delighted to welcome Cornish Tin to the Tin Code, as our third explorer and developer company since in 2023 we expanded the standard to include early stage projects to promote the adoption of high standards from day one. The Tin Code sets a strong example of how sustainability can be integrated from the earliest stages of development, helping to shape a more responsible future for the tin industry.”

Further information about Cornish Tin and its projects is available at cornishtin.uk. For more information on the Tin Code for E&Ds and how to participate, visit tincode.org/participants and internationaltin.org/explorers-developers-group.

The International Tin Association (ITA) is pleased to announce that ARCHE Advisors has expanded its team of auditors registered under Tin Code Assurance, further strengthening the pool of qualified ISAE 3000 auditors. ARCHE Advisors have been a registered since July 2025, and their team now includes Emily Brennan, Kaido Katalsepp, Alejandro López y López, and the most recent addition, Arifzal Adrianto.

The expanded ARCHE team brings extensive global experience and expertise in ESG due diligence, responsible sourcing, and mineral supply chain assessments, with auditors fluent in several languages, supported by credentials such as Tin Code, RMI, Copper Mark, LBMA, and ICMM audits.

A strong, diverse Tin Code auditor network: https://tincode.org/registered-auditors/

They conduct Tin Code 7.3 Responsible Sourcing audits, now available to all tin smelters, not just ITA members: https://tincode.org/now-available-tin-code-standard-7-3-responsible-sourcing-independent-assurance-for-all-tin-smelters/

Publicly available Tin Code audit reports can be viewed on our website: https://tincode.org/tin-code-reports/responsible-sourcing-assurance/

ITA and RMI jointly developed the Assessment Criteria for Tin Smelting Companies (v2 2019) with the agreed aim to clarify upstream and downstream understanding of due diligence and a standard aligned with the OECD Guidance.

Following implementation by both organisations of assessments against the Criteria between 2023 and 2025, RMI announced in December 2025 that it will cease conducting assessments against the Criteria effective 1st January 2026. This RMI decision was taken due to limited uptake of assessments against the Criteria, and to focus for tin exclusively on RMI’s own RMAP Tin and Tantalum Standard (2017).

To maintain audit choice for tin smelters, ITA will continue to offer and manage assessments against the Tin Criteria under the Tin Code Assurance Process which has strong uptake.

Both organisations are committed to avoiding duplicated assessments and will actively explore appropriate means to achieve that throughout 2026.

For questions about this update or assessments against the Tin Criteria, please contact: Sonia Marsh (sonia.marsh@internationaltin.org), Daniel Zamora (daniel.zamora@Internationaltin.org).


In November, ITA’s Tin Code Programme Manager Susannah Costley-White, together with independent assessors from Green Horizons Ltd, visited leading tin producers MSC (Malaysia Smelting Corporation) and state-owned company PT Timah Tbk in Indonesia, as well as separately to PT Mitra Stania Prima’s (PT MSP) smelter.

The visits provided an opportunity to engage closely with members and local stakeholders, observe operations first-hand, and support MSC and PT Timah with their upcoming Tin Code reports. This included guidance on evidence submission and alignment with Tin Code standards, helping to ensure best practice in sustainable tin production. The team explored how ITA members apply the Tin Code principles, including environmental management, health & safety, labour practices, legal compliance, human rights, and community and stakeholder engagement.

In Malaysia, ITA toured MSC’s smelting facilities, discussing ESG initiatives and practical Tin Code implementation. In Indonesia, the team visited PT Timah’s onshore and offshore mining operations and local projects in Bangka, gaining insight into how the company manages varying operations in the local context.

The visit to PT MSP’s smelter offered insight into their operations and potential collaboration on sustainability practices under the Tin Code.

ITA thanks MSC, PT Timah, and PT Mitra Stania Prima for their warm welcome and looks forward to visiting more members to support them with Tin Code reporting and sustainable tin production.

MSC is a Member of the International Tin Association and participant of the Tin Code.
PT Timah is a Member of the International Tin Association and participant of the Tin Code.


Malaysia Smelting Corporation Berhad (MSC), a leading tin producer, has achieved a Third-Party Verified rating for Standard 7.3 (Responsible Sourcing) at its Pulau Indah smelter under the established Tin Code Assurance.

The independent verification conducted by third-party auditors confirms that MSC’s due diligence systems and public reporting meet the standards set by Standard 7.3 assessed against the ITA-RMI Assessment Criteria for Tin Smelting Companies (version 2, 25th March 2021) and are fully aligned with the OECD Due Diligence Guidance for Responsible Sourcing of Minerals from Conflict-Affected and High Risk Areas.

This marks the third consecutive year that MSC has undergone independent assurance under the Tin Code, reflecting its commitment to transparency, responsible sourcing, and continuous improvement in supply chain practices.

The Responsible Sourcing rating will be included in MSC’s upcoming comprehensive Tin Code Report, which covers all 72 environmental, social, and governance standards.

For further details, the rating letter, full assurance report, and due diligence documentation are available on the Tin Code website here.

The International Tin Association (ITA) is pleased to announce that Minsur has become the first ITA member to achieve full conformance with all 10 Tin Code Priority Standards, marking a significant step.

The published 2024 Tin Code Report confirms that Minsur has met expectations across the Priority Standards – covering legal compliance; tailings management; banned substances; protected areas; closure and reclamation; safe working practices; forced labour; child labour – worst forms; use of private or state security personnel; and responsible sourcing. 

Minsur’s performance reflects sustained investment in management systems, year‑on‑year improvements across all 72 Tin Code standards, and transparent disclosure. ITA commends the company’s leadership, and its commitment to raising benchmarks for workers, communities and customers. 

“Congratulations to Minsur. It is a privilege to support their journey. Their dedication to continuous improvement sets a strong example for the industry,” said Susannah Costley‑White, Programme Manager, Tin Code. 

Read the full report here: Tin Code Reports 

Minsur’s achievement sets a benchmark for other tin producers working towards Priority Standard conformance, highlights Minsur’s leadership in promoting ESG and sustainable practices throughout its operations, and demonstrates what is possible through strong systems, transparent reporting and continuous improvement. 

The International Tin Association (ITA) is pleased to announce publication of Fenix Metals Sp. z o.o.’s latest Tin Code Report. Fenix is a Poland-based recycler producing refined tin and alloys at its Chmielów smelter. The report highlights high ratings and continued collaboration with the Tin Code. 

Key highlights 

For full details of performance against each Principle and Standard see here. 

Mineração Taboca S/A, a leading Brazilian producer of tin and tantalum, has successfully completed third-party verification under Tin Code Assurance, reaffirming its commitment to responsible sourcing. The independent assurance, conducted by PwC included both the Pirapora (tin smelter) and Pitinga (NbTa processing plant) facilities.  

Key Highlights:  

Looking Ahead:  

This rating for Standard 7.3 (Responsible Sourcing) was determined according to the normal Tin Code validation procedure following Taboca’s independent assurance engagement. It will be included in the next scheduled Tin Code Report covering all 72 Standards.  

For more information, please refer to the rating letter, full assurance report and due diligence documentation available on the Tin Code’s website here.  

We’re pleased to share two new Tin Code reports from leading tin producers from Brazil and Indonesia highlighting continued engagement with the Code and clear steps towards progressive improvement. 

August — Mineração Taboca S/A (Brazil) 

Taboca’s third Tin Code report confirms multiple areas now third-party verified via ISO certifications and PwC’s assurance of the 2022 Corporate Sustainability Report. Highlights include verification of policies and management systems (Principle 1), environmental management (2.1), H&S systems and training (3.1–3.5), and waste management (2.9–2.10). The company is progressing on tailings management as it works towards conformance with the Global Industry Standard on Tailings Management, alongside ongoing work on biodiversity, energy and closure planning.  

September — PT Timah Tbk (Indonesia) 

PT Timah Tbk’s third Tin Code report records third-party verification for greenhouse gas accounting, energy management and onshore biodiversity. The report also transparently reflects the context and impact of Indonesia’s national corruption investigation (~2015–2022). PT Timah Tbk cooperated with authorities and states its commitment to continued annual Tin Code reporting and other international sustainability disclosures.  

The reports can be viewed here.

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