Global Platform for Sustainable Natural Rubber
SharedInvestmentMechanism
Members back sustainability and capacity building for natural rubber smallholders, some by contributing cash to a shared pool, others by funding a qualifying project of their own. Every project is approved under the same mechanism.
- 6 co-funded from pooled cash contributions
- 18 funded in kind by individual members
Every project is approved under SIM, whichever route funds it. Dot size shows projects per country.
Latest update · September 2026
2027 in kind contribution application opens!
SIM 2027 IKC applications are now open. Applications will be assessed against the SIM Funding Principles and the Open Market Criteria set out in the Shared Investment Framework.
Closes 30 September 2026, 23:59 Singapore time
Deadline extended from the original date
Call for nominations · September 2026
2027–2028 SIP Members and PMWG Evaluators: nominations are open
GPSNR members are invited to nominate for Shared Investment Panel (SIP) Member and Project Management Working Group (PMWG) Evaluator positions. Both roles are appointed for a two year term. The current term ends in December 2026, and the next term runs from January 2027 to December 2028.
Closes 16 October 2026, 23:59 Singapore time
Open from 17 September 2026
Recent updates
- Nominations open for 2027–2028 SIP Members and PMWG Evaluators, 17 September to 16 October 2026. Nominate for SIP Member or PMWG Evaluator.Closes 16 October
- Submission deadline for the 2027 in kind contribution call extended to 30 September
- SIM 2026 workplan and calendar publishedMembers only
- Four GPSNR projects selected for funding under SIM 2026, pending contract signing upon receipt of all SIM contributions
What is Shared Investment Mechanism ?
A joint funding framework for the natural rubber value chain
The Shared Investment Mechanism (SIM) is a joint funding framework under which GPSNR ordinary members co-fund sustainability and capacity building projects across the natural rubber value chain. It currently applies as a membership requirement for manufacturer members, with opportunities for other member categories to participate.
How members participate
Members meet their SIM commitment in one of two ways.
Cash contribution
The member contributes cash to the SIM, to co-fund projects collectively with other members.
In kind contribution (IKC)
The member funds their own project that meets the SIM funding principles, in place of contributing cash.
What the SIM funds
Two kinds of project result, and both are held to the same funding principles.
GPSNR projects
Initiatives co-funded by members' cash contributions, selected through open calls for proposals, assessed by the Project Management Working Group evaluators and approved by the Shared Investment Panel.
In kind contribution projects
Projects initiated and funded by an individual member, alone or together with other members or non-members, that meet the SIM funding principles. The member may manage and monitor the project themselves, or assign management and monitoring to GPSNR.
What every SIM project must do
All SIM projects, GPSNR funded or in kind, must meet all four requirements.
- 01
Meet the open market criteria, meaning the benefits delivered can be captured by the entire natural rubber supply chain.
- 02
Align with the GPSNR Policy Framework.
- 03
Address social, environmental or livelihood improvements in the natural rubber supply chains.
- 04
Address at least one, and ideally two, of the eligible topics below.
Eligible topics
- a)Smallholder capacity building
- b)Environmental and/or pesticide management
- c)Deforestation
- d)HCV degradation
- e)Regulatory and/or legal compliance
- f)Agroforestry
- g)Farm mapping/traceability
- h)HCV/HCS mapping of landscape, community or individual smallholders or group of smallholders
- i)Forest preservation, protection and/or restoration
- j)Diversification of revenues for smallholders
- k)Promoting or enhancing social and human rights
- l)Tackle barriers to achieving sustainable production, and can be beyond production practice; for example, efforts to ensure smallholders are incentivised towards sustainable production
How the SIM works
-
01
Annual pledges
Members pledge funds annually based on a set formula: 20% equal share, 80% proportional to rubber sourced.
-
02
Contributions
Contributions can be direct financial support, or in kind projects that align with GPSNR's SIM Funding Principles and meet the open market criteria.
-
03
Governance
Projects are proposed, reviewed by GPSNR's working groups and approved by the Shared Investment Panel, through a structured process.
-
04
Monitoring
Regular monitoring and public reporting ensure transparency and accountability.
Fair contribution formula
Members contribute based on a mix of equal share and their natural rubber sourcing volume.
Applies to SIM 2025, 2026 and SIM 2027
USD 25,000 + USD 0.40 per MT × NR volume sourced by manufacturer
Transparent governance
Shared Investment Panel
How the Panel is composed
| 5 Manufacturers | 1 GPSNR Secretariat | 4 Non-manufacturers | |
|---|---|---|---|
| Composition | Co-chairpersons General manufacturer members | Treasurer | From Responsible WG From SR WG |
| Functions | Inform the Executive Committee of SIP decisions and progress. Find alignment among manufacturers. Maintain transparency and fairness. Support the overall tasks of the SIP. | Maintain and control accounts of projects and monies. Prepare and circulate SIP meeting minutes. | Support the overall tasks of the SIP. |
| Voting rights | Yes | No | Yes |
| Elected by | All manufacturers | Filled by the Secretariat | Elected by the GPSNR Executive Committee |
Panel membership 2025 / 2026
| Category | Organisation | Voting rights |
|---|---|---|
| Manufacturer | Bridgestone | Yes |
| Manufacturer | Continental AG | Yes |
| Manufacturer | GITI | Yes |
| Manufacturer | Goodyear | Yes |
| Manufacturer | Michelin | Yes |
| End User | Mercedes-Benz | Yes |
| CSO | PEFC | Yes |
| PPT | SOCFIN | Yes |
| Smallholder (Côte d’Ivoire) | — | Yes |
| Treasurer | GPSNR Secretariat | No |
Seats are held by organisation. An unfilled seat is shown as vacant rather than left out.
Project Management Working Group evaluators
Evaluators 2025 / 2026
| Category | Organisation | Voting rights |
|---|---|---|
| PPT | SIPH | Yes |
| PPT | Olam | Yes |
| PPT | Sri Trang | Yes |
| Manufacturer | Sumitomo Rubber | Yes |
| Manufacturer | Bridgestone | Yes |
| Manufacturer | Michelin | Yes |
| Smallholder (Thailand) | — | Yes |
| Smallholder (Indonesia) | — | Yes |
| Smallholder (Côte d’Ivoire) | — | Yes |
| End User | BMW | Yes |
| End User | Vacant | Yes |
| End User | Vacant | Yes |
| CSO | WWF Japan | Yes |
| CSO | WildGround | Yes |
| CSO | Vacant | Yes |
| Affiliate Member (Technical Advisor) | GIZ | No |
Evaluators declare interests before each cycle and step out of any proposal where a conflict exists.
Shared Investment Mechanism
Operations of the SIM
From the call for proposals through to project completion, showing where each decision sits and what happens when a project is not approved.
- Approved path
- Not endorsed, returns for remediation
- Select any stage for detail
Select any stage in the diagram to see what happens there and who is responsible.
Read this as text
-
01
Applications come in
Two streams enter the mechanism. GPSNR projects arrive through a call for project proposals open to GPSNR and non-GPSNR members. In kind contribution applications are submitted by manufacturer members.
-
02
Evaluation
Both streams are evaluated together against the same criteria.
Project Management Working Group -
03
Approved, GPSNR projects
Selection and approval
Manufacturers select their preferred projects. The Secretariat proposes a reallocation, which the manufacturers agree. The SIP gives final approval.
Manufacturers, Secretariat, Shared Investment Panel -
04
Signing of contract
The approved GPSNR project is contracted before implementation begins.
-
05
Approved, in kind projects
Implementation begins
The manufacturer commences, or continues, its in kind project implementation. No contracting step applies, since the member funds the project directly.
-
06
Implementation, monitoring and evaluation
Both streams converge here, but monitoring does not work the same way for each. GPSNR projects are monitored by the GPSNR Secretariat. In kind projects are monitored by the member company funding them, unless that member assigns monitoring to the Secretariat.
GPSNR projects: GPSNR Secretariat. In kind projects: the funding member, or the Secretariat where assigned. Evaluation: Secretariat with the Project Management Working Group. -
07
Reporting and final endorsement
Project reporting is evaluated, then put to the SIP for final endorsement.
Secretariat and Project Management Working Group, then Shared Investment Panel -
08
Not endorsed
Remediation plan
A remediation plan is put in place and the project returns to implementation, monitoring and evaluation at step 06.
-
09
Endorsed
Project completion
The project is complete.
-
01
Applications come in
Two streams enter the mechanism. GPSNR projects arrive through a call for project proposals open to GPSNR and non-GPSNR members. In kind contribution applications are submitted by manufacturer members.
-
02
Evaluation
Both streams are evaluated together against the same criteria.
Project Management Working Group -
03
Approved, GPSNR projects
Selection and approval
Manufacturers select their preferred projects. The Secretariat proposes a reallocation, which the manufacturers agree. The SIP gives final approval.
Manufacturers, Secretariat, Shared Investment Panel -
04
Signing of contract
The approved GPSNR project is contracted before implementation begins.
-
05
Approved, in kind projects
Implementation begins
The manufacturer commences, or continues, its in kind project implementation. No contracting step applies, since the member funds the project directly.
-
06
Implementation, monitoring and evaluation
Both streams converge here, but monitoring does not work the same way for each. GPSNR projects are monitored by the GPSNR Secretariat. In kind projects are monitored by the member company funding them, unless that member assigns monitoring to the Secretariat.
GPSNR projects: GPSNR Secretariat. In kind projects: the funding member, or the Secretariat where assigned. Evaluation: Secretariat with the Project Management Working Group. -
07
Reporting and final endorsement
Project reporting is evaluated, then put to the SIP for final endorsement.
Secretariat and Project Management Working Group, then Shared Investment Panel -
08
Not endorsed
Remediation plan
A remediation plan is put in place and the project returns to implementation, monitoring and evaluation at step 06.
-
09
Endorsed
Project completion
The project is complete.
Shared Investment Mechanism
Projects supported under SIM
Twenty four projects, filtered by approval cycle or by country.
What SIM 2025 and SIM 2026 mean here. They are the funding cycle in which a project was approved, not how long it runs. Most projects run for more than one year, and several approved under SIM 2025 were extended under SIM 2026. Those are shown as a single project with both approvals recorded, and are counted once on the map. Project end dates are not listed because they change as projects are extended.
Approval cycle
Country
Dot size shows how many projects run in that country. A project approved in both cycles is counted once. A project running in two countries is counted under both.
All projects
| Project ID | Project title | Project funder | Country | Status |
|---|---|---|---|---|
| GPSNR2025‑01 | Improving health and livelihoods of smallholder rubber farming communities in West AfricaApproved under SIM 2025 · Pooled fund project | GPSNR pooled fund13 contributing members
|
Côte d’Ivoire | Ongoing |
| GPSNR2025‑02 | Support livelihood improvement in rubber communities and reforestation solutions in the Indénié-Djuablin and Guémon regionsApproved under SIM 2025 · Pooled fund project | GPSNR pooled fund15 contributing members
|
Côte d’Ivoire | Ongoing |
| GPSNR2026‑01 | Designing a community-led sustainable natural rubber farming system in Thailand's Western Forest Complex (WEFCOM)Approved under SIM 2026 · Pooled fund project | GPSNR pooled fund14 contributing members
|
Thailand | Pending contract signingAwaiting receipt of all SIM contributions before contract signing and commencement of official project implementation. |
| GPSNR2026‑02 | Strengthening smallholder capacity to protect HCVs and HCS forests and mitigate deforestation in natural rubber supply chainsApproved under SIM 2026 · Pooled fund project | GPSNR pooled fund14 contributing members
|
Indonesia | Pending contract signingAwaiting receipt of all SIM contributions before contract signing and commencement of official project implementation. |
| GPSNR2026‑03 | Agroforestry Diversification and Value Addition for Rubber Productivity Resilience, Farmer Livelihoods, Ecological Restoration and Human-Wildlife Co-existenceApproved under SIM 2026 · Pooled fund project | GPSNR pooled fund14 contributing members
|
Thailand | Pending contract signingAwaiting receipt of all SIM contributions before contract signing and commencement of official project implementation. |
| GPSNR2026‑04 | Sustainable Natural Rubber : Empowering Smallholders For Livelihood Resilience And Boosting Human-Elephant Coexistence In Tapi River LandscapeApproved under SIM 2026 · Pooled fund project | GPSNR pooled fund13 contributing members
|
Thailand | Pending contract signingAwaiting receipt of all SIM contributions before contract signing and commencement of official project implementation. |
| IKC2025‑01 | Sustainability and Value Added in Agricultural Supply Chains in IndonesiaApproved under SIM 2025 · In kind contribution | Continental | Indonesia | Ongoing |
| IKC2025‑04 | From Farm to Tire: Empowering Natural Rubber Farmers for Sustainability BusinessApproved under SIM 2025 · In kind contribution | GITI | Indonesia | Ongoing |
| IKC2025‑08 | Holistic Capacity Building Project for Natural Rubber Smallholders in Northern ThailandApproved under SIM 2025 · In kind contribution | Michelin | Thailand | Ongoing |
| IKC2025‑09 | Sumatran Elephant Conservation – Keeping the High Value Species for High BiodiversityApproved under SIM 2025 · In kind contribution | GITI | Indonesia | Ongoing |
| IKC2025‑11 | Project proposal for regenerative agroforestry & jungle rubber in Ban Bon Khuan community forestApproved under SIM 2025 · In kind contribution | Pirelli | Thailand | Ongoing |
| IKC2025‑14 | Smallholder Good Agricultural Practices Coaching in ThailandApproved under SIM 2025 · In kind contribution | Sumitomo Rubber | Thailand | Completed |
| IKC2025‑15 | GPSNR Agroforestry ProjectApproved under SIM 2025 · In kind contribution | Michelin | Thailand | Completed |
| IKC2025‑16 | Strengthening the Capacity and Livelihood improvement of Smallholder Rubber Farmers in North-Eastern IndiaApproved under SIM 2025 · In kind contribution | CEAT | India | Ongoing |
| IKC2026‑01Extension of IKC2025‑10 | Rooted Resilience: Empowering Smallholders with Nature-Based Solutions in Indonesia and Ivory CoastApproved under SIM 2025, extended under SIM 2026 · In kind contributionExtended under SIM 2026Approval history
|
Bridgestone SingaporeEarlier approval under Bridgestone | Indonesia and Côte d’Ivoire | Ongoing |
| IKC2026‑02 | Smallholder-Led Regenerative Rubber Farming in South SumatraApproved under SIM 2026 · In kind contribution | Goodyear | Indonesia | Ongoing |
| IKC2026‑03Extension of IKC2025‑02 | WWF-Bridgestone Sustainable Natural Rubber project in IndonesiaApproved under SIM 2025, extended under SIM 2026 · In kind contributionExtended under SIM 2026Approval history
|
Bridgestone CorporationEarlier approval under Bridgestone | Indonesia | Ongoing |
| IKC2026‑04 | Rubber and Local Fruit Trees Agroforestry for Reforestation Deforested Land Through Social Forestry Scheme.Approved under SIM 2026 · In kind contribution | PT. Bridgestone Kalimantan Plantation | Indonesia | Ongoing |
| IKC2026‑05Extension of IKC2025‑12 | Comprehensive support for capacity building and living environment improvement for small-scale rubber farmers in Surat Thani, Southern ThailandApproved under SIM 2025, extended under SIM 2026 · In kind contributionExtended under SIM 2026Approval history
|
The Yokohama Rubber Co., Ltd. | Thailand | Ongoing |
| IKC2026‑06Extension of IKC2025‑13 | Sustainable Livelihoods and Ecological Education Promotion Project for Natural Rubber Smallholders in Northeastern ThailandApproved under SIM 2025, extended under SIM 2026 · In kind contributionExtended under SIM 2026Approval history
|
Sailun Group Co., Ltd. | Thailand | Ongoing |
| IKC2026‑07Extension of IKC2025‑05 | Project CASCADE: Committed Actions for Smallholders Capacity DevelopmentApproved under SIM 2025, extended under SIM 2026 · In kind contributionExtended under SIM 2026Approval history
|
Michelin | Indonesia | Ongoing |
| IKC2026‑08Extension of IKC2025‑06 | MAHAKAM ProjectApproved under SIM 2025, extended under SIM 2026 · In kind contributionExtended under SIM 2026Approval history
|
Michelin | Indonesia | Ongoing |
| IKC2026‑09Extension of IKC2025‑03 | Rural Communities Transformation and Restoring Ecosystems for Sustainable Natural Rubber in Xishuangbanna Phase II 2026Approved under SIM 2025, extended under SIM 2026 · In kind contributionExtended under SIM 2026Approval history
|
Linglong Tire | China | Ongoing |
| IKC2026‑10Extension of IKC2025‑07 | The Rubber Improvement of Value Chain and Embedded Smallholders Resilience (RIVER) projectApproved under SIM 2025, extended under SIM 2026 · In kind contributionExtended under SIM 2026Approval history
|
Michelin | Sri Lanka | Ongoing |
No projects in that country yet.
GPSNR SIM Notebook (Google NotebookLM)*
*The information provided in this Google Notebook is generated for reference purposes only and is derived from selected key GPSNR documents.
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