Over the past month, members of the ITA sustainability team participated in a series of engagements across Europe and China, providing valuable insights into emerging sustainability expectations and performance across the tin value chain.

ITA representatives visited Yunnan Tin Company (YTC) in China to review progress against the Tin Code and discuss sustainability performance across mining and smelting operations, including environmental monitoring, tailings management, stakeholder engagement, human rights, responsible sourcing and assurance processes. 

The ITA commends YTC for its openness, collaboration, and commitment to continuous improvement. The combined process of on-site engagement and structured reporting demonstrates how targeted support and guidance can drive meaningful progress in sustainable tin production. Read all Tin Code reports here: Tin Code Reports 

The team also participated in CSR Europe’s Drive+ event, bringing together automotive manufacturers and suppliers to discuss due diligence, the global risk environment, supply chain transparency and the development of the next generation Sustainability Assessment Questionnaire (SAQ 6.0). Discussions highlighted growing interest in reducing reporting burdens through greater alignment and interoperability between sustainability frameworks.

At the same time, ITA attended the European Partnership for Responsible Minerals (EPRM) 10-year anniversary conference, held in Amsterdam, where discussions focused on the role of artisanal and small-scale mining (ASM) in responsible mineral supply chains. A key theme throughout the conference was the importance of practical due diligence approaches that enable continuous improvement while maintaining fair market access for responsible ASM producers. As a longstanding EPRM member, ITA continues to support responsible ASM engagement through the Tin Code and ASM Handbook. More information here.

Across these engagements, a common message emerged: stakeholders increasingly want sustainability systems that are practical, credible and capable of delivering meaningful transparency without creating unnecessary reporting burdens. 

The discussions also reinforced the importance of Principle 8 of the Tin Code, which encourages companies to positively influence the practices of suppliers of materials, goods and services. Whether through ASM supplier engagement, sharing guidance or supporting continuous improvement, companies are increasingly expected to help drive sustainable practices throughout their supply chains. 

As sustainability expectations continue to evolve, the Tin Code remains an important ESG standard and assurance framework for translating operational performance and continuous improvement into trusted sustainability information for customers, regulators and other stakeholders across the global tin supply chain. 

The International Tin Association (ITA) is delighted to announce that the London Metal Exchange (LME) has granted full Track A approval to Tin Code Standard 7.3 Responsible Sourcing, assessed using the Tin Assessment Criteria, as a Track A alignment-assessed standard under the LME Responsible Sourcing Rules. 

The decision follows an independent alignment assessment conducted by LME-approved assessor Kumi Consulting Ltd, confirming the Tin Code’s policies, standards and implementation are “Fully Aligned” with the OECD Due Diligence Guidance for Responsible Supply Chains of Minerals from Conflict‑Affected and High‑Risk Areas. 

This elevates Tin Code Standard 7.3 to a fully accepted Track A assurance pathway, enabling tin smelters to demonstrate responsible sourcing through a single, standardised and independently verified programme aligned with international expectations. 

Tin Code Standard 7.3 provides independent third-party assurance of key due diligence controls, including country of origin verification and processes to identify and mitigate risks, supported by transparent reporting. This is backed by independent assessment of the results to produce a clear and transparent performance rating. 

For downstream users, it improves access to verified responsible sourcing data, supporting procurement decisions, regulatory compliance and supply chain transparency. View our responsible sourcing assurance reports here. 

LMEpassport further enhances implementation by linking Certificates of Analysis and wider Tin Code full ESG disclosures directly to metal brands, creating a digital trail that improves traceability and access to verified documentation. 

Overall, the approval reinforces the Tin Code as a practical responsible sourcing assurance programme, aligned with OECD and international expectations, supported by recognised assurance standards and digital reporting tools.

The International Tin Association (ITA) is pleased to announce the publication of Malaysia Smelting Corporation Berhad (MSC)’s fifth Tin Code Report, covering the period from November 2024 to December 2025.

The report reflects MSC’s continued commitment to ESG transparency, sustainable and responsible tin production, and ongoing engagement with the Tin Code. During the reporting cycle, the majority of assessed standards achieved ratings of Progressing, Conforming, or Third-Party Verified, demonstrating sustained implementation of established management systems and responsible business practices.

Key updates

The report was supported through direct engagement between MSC, ITA, and independent assessors from Green Horizons Ltd during a site visit to MSC’s Malaysian operations in November 2025. The visit provided an opportunity to review implementation of Tin Code standards on-site, support evidence collection, and discuss future priorities across ESG-related areas.

ITA thanked the MSC team for its openness, collaboration, and constructive engagement throughout the assessment process, noting that continued reporting and ESG implementation remain important for strengthening transparency and continuous improvement across the global tin industry.

As one of the world’s longest-established tin smelting companies, MSC’s continued participation in the Tin Code demonstrates its commitment to sustainable and responsible tin production and strengthening confidence in the global tin supply chain.

Read the full report here: Tin Code Reports 

The International Tin Association (ITA) is pleased to announce the publication of Yunnan Tin Company Ltd’s third Tin Code Report, covering the reporting period January 2023 – December 2024.

This report has been assessed under the updated Tin Code standards introduced in May 2022, which strengthened the overall framework and resulted in certain additional standards becoming relevant to the company’s operations for assessment under the Tin Code.

Yunnan Tin Company Ltd, the world’s largest tin producer, continues to demonstrate strong and structured engagement with the Tin Code across its integrated mining, processing, and smelting operations in China. The Gejiu smelter remains central to its operations, accounting for the majority of refined tin production within the reporting scope.

This latest report highlights robust ESG systems, strong conformance outcomes, and continued operational improvement, supported by ISO 9001, ISO 14001, and ISO 45001 certifications.

Key updates

YTC’s continued participation in the Tin Code reflects its commitment to sustainable and responsible production, structured ESG management, and continuous improvement across its global tin operations.

Read the full report here: Tin Code Reports 

The International Tin Association (ITA) is pleased to announce the publication of Thailand Smelting and Refining Co Ltd (Thaisarco)’s fourth Tin Code Report, covering 1 June 2024 – 31 May 2025. 

Thaisarco, a long-established tin smelter based in Phuket, continues to play an active role in the Tin Code, contributing to a growing network of producers advancing sustainable, responsible and transparent tin production. 

This latest report highlights strong ongoing engagement and continued ESG progress across key operational areas, supported by established systems and third-party verification. 

Key updates

The report reflects Thaisarco’s sustained commitment to continuous improvement and its contribution to strengthening responsible sourcing within the global tin industry.

Read the full report here: Tin Code Reports 

The International Tin Association (ITA) is pleased to announce the publication of Operaciones Metalúrgicas S.A. (OMSA)’s 2024 Tin Code Report. Based in Oruro, Bolivia, OMSA is a leading tin producer and an active participant in the Tin Code, demonstrating strong commitment to sustainable, responsible, and transparent tin production.

The report follows ITA’s recent on-site visit, conducted with independent assessor, Paul Mitchell of Green Horizons Ltd. The visit included operational review, guidance on reporting practices, and support OMSA’s continued progressive improvement of the Tin Code standards. A visit to Empresa Metalúrgica Vinto S.A. (EM Vinto) provided broader regional context and explored opportunities for collaboration on sustainability practices.

During the visit, ITA worked closely with OMSA’s management and technical teams, reviewing smelting and processing operations, advising on evidence collection, documentation, and Tin Code standards. This hands-on support ensured the 2024 report accurately reflects OMSA’s performance. 

The report highlights OMSA’s strong results: improvements across 41 standards, with most standards rated Conforming or Third-Party Verified. Priority Standards achieved 75% conformance, double the previous report’s 37.5%, positioning OMSA as a leading example among tin producers globally. 

A particular highlight is Tin Code Principle 8: Seek to positively influence practices of suppliers of materials, goods and services. OMSA demonstrated robust engagement with cooperative suppliers, including site visits, policy reviews, environmental management, and occupational health and safety follow-ups – showing tangible impact in Bolivia and setting a benchmark for sustainable supply chain practices worldwide. 

Further improvements were recorded in occupational health and safety, environmental monitoring, and documentation, reflecting OMSA’s ongoing ESG alignment and continuous improvement.

The ITA commends OMSA for its openness, collaboration, and commitment to continuous improvement. The combined process of on-site engagement and structured reporting demonstrates how targeted support and guidance can drive meaningful progress in sustainable tin production. 

Read the full report here: Tin Code Reports 

The International Tin Association (ITA) announces the publication of Fenix Metals’ fifth Tin Code Report, covering June 2023 – October 2025.

Most significantly, the report confirms that Fenix Metals is the first ITA member to achieve Conforming status across all relevant Tin Code standards, including all relevant Priority Standards, under the current (post-May 2022) standard. These ratings have been independently assessed and verified by the independent external assessor.

Conforming and Third-Party Verified status is progressed or maintained across all relevant Priority Standards covering legal compliance; banned substances; protected areas; safe working practices; forced labour; child labour – worst forms; use of private or state security personnel; and responsible sourcing.

Conformance is required for the 10 Priority Standards, which address the most material ESG risks. The remaining standards are structured to support continuous improvement over time.

“I am very proud of this achievement. It reflects the hard work and commitment of the whole Fenix Metals team throughout the year. We already refer to the Tin Code in our communication with business partners and auditors, and we are especially pleased that we can now share that Fenix Metals has achieved full conformance with the current relevant Tin Code standards. This is an important confirmation of our continued focus on ESG, responsible sourcing and transparency.” Jolanta Sapielak, Quality Assurance Manager at Fenix Metals

With this publication, Fenix Metals becomes the first ITA member to publish five Tin Code Reports, demonstrating sustained and structured engagement with the Tin Code as a progressive ESG standard. The company continues to show consistent year-on-year improvement across the 72 Tin Code standards, where applicable to its operations, reinforcing its long-term commitment to sustainable production and transparency.

This result establishes a benchmark for other tin producers progressing within the Tin Code, highlighting the role of structured systems, openness, and continuous improvement in achieving sustained ESG advancement.

Read the full report here: Tin Code Reports 


Aurubis Beerse NV has successfully achieved third-party verification under Tin Code Assurance, reenforcing its commitment to responsible sourcing and transparent supply chain practices.

The independent assurance, conducted by ARCHE Advisors, covered Aurubis Beerse’s Belgium tin smelter and included review of its due diligence systems and public reporting against the ITA-RMI Assessment Criteria for Tin Smelting Companies (version 2, 25th March 2021), with the assurance report dated 11 April 2026.

Key Highlights:

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

See the following for additional context on Tin Code Assurance, its independent validation process, and how it is used by tin users and downstream stakeholders. 


White Solder Metalurgia e Mineração LTDA has successfully achieved third-party verification under Tin Code Assurance, reaffirming its commitment to responsible sourcing and transparent supply chain practices.

The independent assurance, conducted by ARCHE Advisors, covered White Solder’s Ariquemes smelter and included review of its due diligence systems and public reporting against the ITA-RMI Assessment Criteria for Tin Smelting Companies (version 2, 25th March 2021), with the assurance report dated 14 April 2026. This marks the third consecutive year that White Solder has undergone independent assurance under the Tin Code.

Key Highlights:

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

See the following for additional context on Tin Code Assurance, its independent validation process, and how it is used by tin users and downstream stakeholders. 

An independent assessment confirms that the standards and implementation of Tin Code 7.3 Responsible Sourcing Assurance for tin smelters is ‘Fully Aligned’ with the OECD Due Diligence Guidance for Responsible Supply Chains of Minerals from Conflict-Affected and High-Risk Areas. This achievement reflects the Tin Code’s alignment with internationally recognised due diligence practices for responsible sourcing.

The Tin Code’s responsible policies and standards were independently assessed as ‘Fully Aligned’ in 2021. A further implementation assessment between 2024 and 2026 evaluated how these standards work in practice. To ensure a thorough review, the assessment included site observations at primary and recycling tin smelters in Europe and Africa.

Key strengths in the implementation of the Tin Code programme include:

The report identified only one area for improvement regarding transport documents, which ITA is committed to clarifying as part of its training procedures.

The Tin Code Assurance is increasingly being used by smelters to support responsible sourcing and provides a robust framework for demonstrating due diligence to downstream customers and stakeholders, see reports here. Importantly, the assurance system is also available to non-ITA smelters, enabling wider adoption of OECD-aligned responsible sourcing practices across the tin industry. Outputs from the Tin Code 7.3 assurance feed directly into full ESG Tin Code reports, providing actionable insights on supply chain due diligence and supporting continuous improvement across the sector.

For transparency, ITA has published the final alignment assessment reports here: Tin Code | Responsible Sourcing

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