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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

• Maintained Third-Party Verified status for Standard 7.3 (Responsible Sourcing)
• Third consecutive year of independent responsible sourcing assurance under Tin Code Assurance
• Strong health & safety systems, with third-party verification confirming full ISO 45001 alignment, including incident management and safe working practices
• Strengthened labour performance, with conformance across labour management systems and working hours requirements
• On-site engagement in Malaysia (2025) with ITA and independent assessors (Green Horizons Ltd), supporting detailed review and identification of improvement opportunities
• Ongoing collaboration on future improvement priorities, including progress towards conformance with all relevant Priority Standards

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

• Strong Priority Standards performance:
  Overall conformance has reached strong alignment with Priority Standards, reflecting continued ESG progress.
• Strong health & safety systems:
  Third-party verification confirms full ISO 45001 alignment, including incident management and safe working practices.
• Strengthened environmental performance:
  Third-Party Verified under ISO 14001, with improvements in water management (2.3) and waste minimisation (2.9, 2.10), supporting emissions, water, and waste controls.
• Strong labour and governance performance:
  Full conformance across labour standards, including non-discrimination, fair pay, working hours, freedom of association, and protections against forced and child labour, supported by training and management systems.
• Strengthened community and social management systems:
  Ongoing improvements in community health and safety (6.2), natural resource management (6.9), and cultural heritage training (6.11), with enhanced community engagement procedures.
• Continued improvement in supplier engagement (Principle 8):
  Positive progress in supplier engagement, including strengthened practices, advancement in ASM-related standards, and ongoing development of broader supplier management systems.

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

• Strong Priority Standards performance:
  71% conformance in relevant Priority Standards, reflecting continued ESG progress and structured improvement.
• Health & Safety excellence:
  Third-party verified occupational health and safety management through ISO 45001 certification, reinforcing robust systems for safe working practices, training, and incident management.
• Stronger governance:
  Continued advancement of management systems and business integrity frameworks.
• Greater transparency:
  Ongoing improvements in reporting quality, disclosure, and documentation practices.
• Supply chain engagement:
  Continued implementation of Principle 8, with strengthened engagement across ASM and LSM suppliers on environmental, health, safety, and community practices.

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:

• This verification relates specifically to Standard 7.3 (Responsible Sourcing), one of the 72 environmental, social and governance standards of the Tin Code.
• Aurubis Beerse has implemented policies and procedures to assess potential risks and seek to avoid support to conflict, human rights abuses, and other significant harms.
• During the reporting period, the Beerse site sourced mainly recycled (secondary) materials, along with limited intermediate materials (e.g., FeSn hardhead) and unused metal products. All intermediate and additional materials were sourced exclusively from RMAP Conformant smelters.
• An independent alignment assessment confirmed that the Tin Code Assurance process and Standard 7.3 Criteria are fully aligned with the OECD Due Diligence Guidance for Responsible Sourcing of Minerals from Conflict-Affected and High Risk Areas, including standards, implementation, and audit management process under the Tin Code.
  

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:

• This verification relates specifically to Standard 7.3 (Responsible Sourcing), one of the 72 environmental, social and governance standards of the Tin Code.
• White Solder has implemented policies and procedures to assess potential risks and seek to avoid support to conflict, human rights abuses, and other significant harms.
• During the reporting period, 100% of cassiterite inputs were sourced from Brazil, with no material originating from CAHRA-designated regions.
• An independent alignment assessment confirmed that the Tin Code Assurance process and Standard 7.3 Criteria are fully aligned with the OECD Due Diligence Guidance for Responsible Sourcing of Minerals from Conflict-Affected and High Risk Areas.
  

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:

• Auditors were generally effective in challenging the sites on all areas of the Tin Code standard and underlying expectations set by the OECD.

• A strong focus on ‘continuous improvement’ which is understood by auditors.

• Supporting sites to align with the OECD Guidance while ensuring companies retained individual responsibility for due diligence.

• Knowledgeable auditors adapting assessment approaches and questions to local contexts.

• Highlighting the thoroughness of annual published audit reports and assured company Step 5 reports online, giving stakeholders access to information for efficient due diligence. The Tin Code also provides a public progression chart to demonstrate commitment to continuous improvement.

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

International Tin Association (ITA) signed a Memorandum of Understanding (MOU) with the China Chamber of Commerce of Metals, Minerals & Chemicals Importers & Exporters (CCCMC) during its Annual Conference on High-Quality Growth in Metals, Minerals, Chemicals & Building Materials Industry on 25 March 2026 in Beijing, China.

Both parties believe in the importance of collaboration to support the shared aims of each organisation, and to better promote efficient implementation of sustainability practices including by relevant Chinese companies under the Tin Code and the Chinese Due Diligence Guidelines for Mineral Supply Chains. Through the sharing of experiences and information, the two organisations will support the implementation of good mining practices and supply chain due diligence management based on internationally agreed frameworks and the principle of progressive improvement, and plan to explore enhanced collaboration in related areas that will support and improve areas such as the efficient use of supply chain standards and the available choice and value of different reporting and assurance tools for the upstream industry.

About CCCMC

China Chamber of Commerce of Metals, Minerals & Chemicals Importers & Exporters (CCCMC) is a nationwide and industrial non-profit social organisation formed voluntarily by units registered within the territory of the People’s Republic of China according to law and engaged in economic activities in regard to metals & minerals and related products, non-metallic minerals and related products, hardware products, building materials products, petroleum and related products, chemical raw materials and related products, as well as the upstream and downstream industrial chains in the above-mentioned fields. CCCMC works to promote sustainable practices in a wide range of sectors, including through the implementation of the Chinese Due Diligence Guidelines for Mineral Supply Chain. 

About ITA

The International Tin Association (ITA) is the organisation dedicated to supporting and representing the global tin industry, with the objective of maintaining an innovative and sustainable supply chain and market for tin and has experts dedicated to markets, technology and sustainability. ITA works with leading tin producers and downstream users in cooperative activities related to important regional and global issues to provide leadership and to communicate a positive and progressive future for the whole tin industry. ITA has members in Asia, Africa, Europe and the Americas but works to promote sustainable practices of the entire tin related industry, including through the implementation of the Tin Code.