GPSNR Assurance System – Assessment Service Provider Application

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JANUARY 2026 

ISSUED BY 
Global Platform for Sustainable Natural Rubber 

Introduction & Background 
The Global Platform for Sustainable Natural Rubber (GPSNR) is an international, multi-stakeholder, voluntary membership initiative seeking to lead improvements in the socioeconomic and environmental performance of the natural rubber value chain. Members of the platform include tire manufacturers, rubber suppliers and processors, vehicle makers and NGOs. Representatives from each of these stakeholder groups have contributed to the development of the Singapore-based platform and the wide-reaching set of priorities that will define strategy and objectives 

The GPSNR Assurance System, designed by Assurance Services International (ASI) and for GPSNR members, is a risk-based framework that supports credible and independent assurance processes. It enables companies to identify and mitigate human rights and environmental risks within their supply chains, undergo third-party verification, and report transparently on their progress through credible claims. The details of which can be found at this link. 

The Engagement 
The GPSNR Secretariat is seeking qualified organizations and individual professionals to become GPSNR Assessment Service Providers (ASPs). Approved ASPs will conduct impartial and independent third-party assessments in accordance with GPSNR’s procedures and requirements. 

Selected ASPs will be responsible for delivering independent assurance assessments for GPSNR member companies, following GPSNR’s approved Assurance System methodologies and procedures. The engagement includes participation in GPSNR training and oversight processes, adherence to the GPSNR Assurance Service Provider Agreement, and maintenance of competence and impartiality throughout the duration of approval. 

Training for pre-approved ASPs is expected to commence in the first quarter of 2026, with assessments scheduled to begin thereafter upon completion of training and formal approval. 

GPSNR welcomes applications from qualified organizations or individuals who:

• Are legally registered and in good standing; 
• Have demonstrable experience in sustainability assurance, auditing, or related compliance assessments; 
• Can maintain independence, integrity, and confidentiality in delivering assessment services; and 
• Are willing to undergo GPSNR’s approval and oversight process. 

Applicants may include individual contractors, small-sized ASPs (with 5 or fewer full-time equivalent personnel), or large-sized ASPs (with more than 5 full-time equivalent personnel). 

Submission Guidelines & Requirements
The following submission guidelines & requirements apply: 

  1. Applications will be considered only from individuals or organizations with experience relevant to this project.

  2. All applicants (individuals or organisations) are required to list the individual(s) applying to be approved as an Assessment Service Provider.

  3. Applicants must provide evidence of previous relevant work or experience, along with any other required supporting documents.

  4. Applicants must confirm that they have read and agree to the GPSNR ASP Agreement Terms and Conditions.

  5. Applications must be signed by an authorized representative.

  6. Applications will only be considered upon receipt of the non-refundable application fee. An invoice will be issued and must be paid within 30 days of issuance. Further details are provided in the fee schedule.

  7. More detailed guidance and supporting information about GPSNR procedures, assessment methodology, and training will be provided to applicants who successfully pass the pre-approval stage of the application process.

  8. Applications must be received prior to the 27th of February 2026 to be considered. Applications should be submitted to natalie.low@gpsnr.org for consideration.  

Project Timelines 

Submission of application and supporting documents to natalie.low@gpsnr.org 

February 27, 2026 

Selection and desk review of pre-approved applications 

Commencing upon receipt of applications and continuing through early March 2026 

Training of pre-approved ASP applicants 

March 2026 

Final approval of ASPs and publication 

March 31, 2026 

Start of GPSNR member selection and contract signing with approved ASPs 

April 2026 


Evaluation Factors 

GPSNR will evaluate applicants based on the following factors: 

  1. Responsiveness to the requirements set forth

  2. Relevant past performance/ experience

  3. Provision of relevant documents

  4. Technical expertise/experience  

Download ASP application form here: 

Download ASP agreement terms and conditions here: 

Download Assurance assessment workflow here: 

More To Explore

News

GPSNR’s new Policy Framework drives members commitment to sustainable rubber production and sourcing

Singapore, 23 September 2020: On Wednesday, members of the Global Platform for Sustainable Natural Rubber (GPSNR) convened the annual General Assembly, which saw the approval of a members’ sustainability policy framework and the creation of a new membership category for smallholder producers of natural rubber.

The newly approved policy framework will help GPSNR member companies, who account for almost 50% of global natural rubber volume, to establish or update strong supply chain sustainability commitments through their natural rubber purchasing policies, on all aspects of sustainability: economic, environmental, and social. Modeled around the Platform’s 12 Principles of Sustainable Natural Rubber, the new policy framework sets out eight overarching themes that include commitments to legal compliance, community livelihoods, healthy, functioning ecosystems (including no deforestation), and respecting all human rights.

“This is a tremendous milestone for the Platform and for the natural rubber industry. In just under two years, GPSNR members developed and approved concrete policy commitments for companies to integrate into their sustainable natural rubber policies. Today, and despite the challenges we all faced during this global pandemic, GPSNR members send a signal to the world about their commitment to achieving a fair, equitable and environmentally sound future” said GPSNR Director Stefano Savi.

Around 85% of the world’s natural rubber is produced by smallholders. In order to transform a sector that is primarily reliant on smallholder producers, GPSNR is embracing smallholder inclusivity and a concept of shared responsibility through the establishment of a Shared Responsibility Working Group, which will identify how the responsibilities and costs of implementation can be equitably distributed across all stakeholder categories, with the understanding that smallholders should not carry the burden of a higher cost to implement sustainability activities in complying with the policy or implementation guidance to be developed.

“Smallholders are a crucial link in the natural rubber value chain, and they have a key role to play in driving awareness on-the-ground and setting the global agenda for sustainable natural rubber” remarked Director Savi.

This year, GPSNR welcomed 28 smallholder members from seven rubber-producing countries. These smallholders now constitute a newly approved standalone category and play an equal role in decision-making within GPSNR alongside the other four categories: producers, processors, and traders; tire manufacturers and other natural rubber makers/buyers; car manufacturers, other downstream users and financial institutions; and civil society.

GPSNR’s virtual General Assembly drew more than 120 attendees, including members of the Platform, partners and invited guests. In addition to voting on resolutions, GPSNR members also elected representatives to the 2020-2021 Executive Committee, which comprises representatives from each of the membership categories. And for the first time, three newly elected smallholder producers with diverse geographical backgrounds will participate in Executive Committee discussions and decision-making.

News

Strategy and Objectives Working Group Update – August 2019

We have already had the chance to discuss some updates on the work of the GPSNR Strategy and Objectives working group in our first newsletter in July 2019, available here.

Since then, the Strategy and Objectives Working Group has continued to build out the scope and desired deliverables for the first 3 strategies that GPSNR should implement, namely: 1) Natural Rubber Sustainability Policy Toolbox and Best Practices Guidance; 2) Capacity Building for Smallholders and Rubber Plantations supplying Natural Rubber; 3) Improving Transparency and Traceability within the Natural Rubber Supply Chain.

Strategy 1, “Sustainability Policy Toolbox and Best Practices Guidance”, has now been finalized within the Strategy and Objectives Working Group members. The estimated timeline for the completion of this work has been laid out to ensure that the final approval by the Executive Committee is granted in time, and the deliverables of this strategy can be put forward for consideration by the General Assembly in March 2020. In order to achieve this, the first step will be for the strategy document to be submitted to the GPSNR Executive Committee for approval in August, so that the recruitment to form the sub-working group for Strategy 1 can start as soon as possible.

While the Working Group is still in the initial stages of clarifying the scope for Strategy 2, “Capacity Building”, Strategy 3, “Improving Transparency and Traceability” is under the final revision process by the Strategy and Objectives Working Group members. Once this document is agreed internally, it will be submitted to the Executive Committee for approval. The work on Strategy 3 will also be informed by a study GPSNR plans to commission in the next weeks, to better compare and understand transparency and assurance tools that are currently available, that can be applied to the Natural Rubber supply chain.

The Strategy and Objectives Working Group members are holding bi-weekly catch-up calls to progress the work on these strategies, and ensure that GPSNR has a system that benefits smallholders and and all stakeholders in the natural rubber value chain, adding a credible assurance model which enhances transparency. Every voice is crucial to accomplish this mission, so we welcome you to hop on board and help GPSNR being a better, more inclusive platform. For more information on how to join GPSNR or the Working Groups, contact kobrat@gpsnr.org.

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