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SAVi-Mining Adaptation v1

Methodology sub-page · Effective 18 May 2026 (v1.2.0 deploy) · Editorial responsibility: Nikesh Patel · Status: METHODOLOGY SHIPS IN-PROGRESS — externality category identification Derived; conventional NPV anchor Sourced; every monetised externality value [Pending — ESIA input layer]; populated SAVi-extended NPV deferred to v1.2 Phase 2.

What SAVi-mining is. SAVi (Sustainable Asset Valuation) is a methodology developed and published by the International Institute for Sustainable Development (IISD) for analysing investment decisions on long-lived assets. SAVi extends conventional discounted-cash-flow valuation by monetising environmental, social, and climate-resilience externalities and integrating them into the valuation as explicit cashflow items, rather than leaving them as qualitative country-risk or compliance overlays. Published SAVi applications are in infrastructure, water, transport, and energy; there is no published SAVi-mining case study. "SAVi-mining" is therefore a methodological extension, not the application of an established framework. The Afrimintel SAVi-mining adaptation applies SAVi's externality-monetisation principles to a worked African mining asset and publishes the resulting methodology.

Counterparty Extension — active and load-bearing. IISD is cited as the public-source author of the SAVi framework per IISD's published SAVi documentation. No collaboration with IISD is confirmed. This document develops a SAVi-aligned methodology adaptation; it does NOT represent joint authorship, joint work product, or any IISD endorsement. Permitted framing: "Afrimintel SAVi-mining adaptation per IISD published SAVi methodology." Prohibited framing: "joint with IISD," "co-developed with IISD," "IISD-validated," "IISD-endorsed." This holds in every internal and external communication until and unless IISD editorially confirms collaboration in writing.

Scaffold v1 — read before use. This page publishes the methodology structure for the SAVi-mining adaptation as applied to the Kabanga development pilot. The conventional NPV anchor (USD 1.58bn @ 8%, per the Lifezone Feasibility Study of 18 July 2025) is Sourced. The externality category identification (§3) is Derived — an Afrimintel editorial classification, published with its reasoning. Every monetised externality value is [Pending — ESIA input layer]. No externality value is monetised, inferred, or estimated on this page. The populated SAVi-extended NPV is a v1.2 Phase 2 deliverable, gated on Kabanga ESIA externality inputs not yet in hand. When monetised values land, they move from Pending to Sourced via audit log entries per §10.9 protocol.

§1 — What SAVi is, and what "SAVi-mining" extends

Conventional project-finance DCF for a mining asset prices ore, capex, opex, royalties, tax, and a country-risk-adjusted discount rate. It does not price the externalities the project imposes on third parties (downstream water quality, biodiversity loss, GHG emissions) or the social co-benefits the project creates (local-content employment, infrastructure spillovers). Those sit in the country-risk premium qualitatively, in ESIA documents narratively, and in DFI safeguards review as gate conditions — but not in the NPV.

SAVi's methodological move is to monetise those externalities and integrate them into the valuation as explicit cashflow items. The resulting SAVi-extended NPV is a single number that an institutional capital allocator can compare to the conventional NPV and to peer assets that have or have not undergone the same treatment. It is not a substitute for the safeguards review or the ESIA; it is a screening-grade overlay that surfaces externality-adjusted valuation context at the asset selection stage.

Why Kabanga is the development pilot

Two structural reasons, and only two:

Greenfield, pre-FID. Kabanga is pre-FID with a feasibility study published 18 July 2025. A pre-FID asset lets SAVi externality monetisation inform the FID decision shape rather than retro-fit a valuation adjustment onto an operating asset. SAVi is most useful before capital is committed.
Counterparty-Extension-clean. Kabanga has stable tenure, a supportive State shareholding (Government of Tanzania 16% free-carried interest in Tembo Nickel Corporation; Lifezone Metals 84%), and no live legal dispute. Developing a new methodology on a clean-tenure asset avoids the confounding that disputed tenure (Manono) would introduce into a method that does not yet exist. Manono is the committed sequential second application once the method exists; the disputed-tenure counterfactual problem can be addressed once the clean-tenure baseline method is published.

The pilot-asset rationale does not rest on geographic continuity with prior IISD work in the Kagera region. That prior work was hydropower, not mining; treating it as a SAVi-mining precedent would be a claim-precision discipline breach and is explicitly excluded from the rationale. The Kagera baseline-data adjacency is a convenience to populate-phase work; it is not a precedent claim.

§2 — The SAVi-mining cashflow-modifier structure

The SAVi-extended NPV for a mining asset is the conventional NPV adjusted by the present value of monetised externality cashflows:

NPV(SAVi) = NPV(conventional, per §10.5) + Σ PV(externality cashflows)

Each externality is monetised as one of two cashflow types:

Imposed cost externality — a cost the project imposes on third parties or the environment that conventional project DCF omits (e.g. downstream water-quality degradation borne by communities, not the operator). Enters as a negative cashflow modifier.
Co-benefit or avoided-cost externality — a cost avoided, or a value created, relative to a defined counterfactual (e.g. avoided unemployment cost through local-content employment; avoided water-treatment cost through a higher-specification tailings design). Enters as a positive cashflow modifier.

Two methodological choices govern the structure and are stated explicitly per the Quality Standard:

§2.1 — Counterfactual baseline

Every externality cashflow is defined relative to a counterfactual. For a greenfield pre-FID asset the natural counterfactual is "no development." Where an externality is better expressed relative to a "conventional-design development" counterfactual (e.g. a co-benefit from a higher-specification tailings design or a hydromet processing route relative to a smelter route), that counterfactual is named in the line item. The counterfactual choice is a methodology variable, not a free editorial parameter.

§2.2 — Externality discount-rate treatment

SAVi practice varies on whether externality cashflows are discounted at the project rate or at a separate social discount rate. The Afrimintel SAVi-mining adaptation discounts externality cashflows at the project's §10.5 risk-adjusted rate for the headline SAVi-extended NPV, and additionally publishes the externality-PV at a separate social discount rate (3% per UK Green Book practice as the disclosed reference) as a disclosed sensitivity. This is a methodology choice open to revision; it is flagged as such, not asserted as settled. Institutional users with a published social discount rate convention can substitute their own and re-run.

§3 — Externality categories material to greenfield Ni-Cu-Co sulphide mining (Kabanga)

The externality categories below are those material to a greenfield nickel-copper-cobalt sulphide mine and concentrator in the Kabanga setting (Kagera Region, NW Tanzania; East African Rift geological province; Lifezone Metals operator via Tembo Nickel Corporation; Government of Tanzania 16% free-carried). The category identification is Derived — an Afrimintel editorial classification, published with reasoning. The monetised values per category are Pending — they require the Kabanga ESIA externality input layer (water-resource baseline, biodiversity baseline, GHG inventory, resettlement scope, local-content commitments) which is not yet in hand. No monetised externality value is asserted on this page.

Environmental externalities

ID	Category	Cashflow type	Monetisation approach (methodology)	Input dependency
EN-1	Downstream water-quality impact on Kagera basin communities	Imposed	Monetised expected impact of tailings-management and process-water discharge on downstream user groups (subsistence agriculture, livestock watering, fisheries) over the 18-year mine life and post-closure period; counterfactual is no-development baseline water quality	Kabanga ESIA water-resource baseline + tailings management plan
EN-2	Sediment and ecosystem-service impact on Kagera River	Imposed	Monetised ecosystem-service degradation (freshwater regulation, fisheries productivity) from construction-phase sediment loading and operational-phase discharge; counterfactual is undisturbed baseline ecosystem-service flow	Kabanga ESIA freshwater ecosystem baseline + IBAT site classification
EN-3	Terrestrial biodiversity impact (mine + concentrator footprint)	Imposed	Monetised biodiversity loss for the mine and concentrator footprint and disturbed buffer, valued against ecosystem-service and existence-value benchmarks for the affected miombo-woodland and wetland mosaic; counterfactual is undisturbed habitat	Kabanga ESIA biodiversity baseline + IBAT
EN-4	GHG emissions	Imposed	Carbon cost at a disclosed carbon price across mine life; the Lifezone hydromet processing route is operator-claimed lower-emission relative to a conventional smelter route — if substantiated from the FS GHG inventory, enters as a relative modifier vs a conventional-processing counterfactual rather than against zero-emission baseline	FS GHG inventory + carbon-price reference convention (disclosed)

Social externalities

ID	Category	Cashflow type	Monetisation approach (methodology)	Input dependency
SO-1	Community displacement / resettlement	Imposed	Resettlement and livelihood-restoration cost beyond the operator's booked provision; village proximity to Main and Main-North-Block zones is the binding factor for resettlement scope	Kabanga ESIA resettlement scope + RAP
SO-2	Local-content employment multiplier	Co-benefit	Avoided-unemployment cost and local economic multiplier from Tanzania local-content employment commitments, valued vs the no-development counterfactual; multiplier convention is disclosed (Lifezone-disclosed direct jobs × disclosed indirect multiplier)	Lifezone local-content commitments + Tanzania local-content regulatory framework
SO-3	Community health & safety	Imposed	Monetised expected community health-and-safety impact (traffic, dust, water-resource competition, occupational-health spillover) net of operator mitigation programmes	Kabanga ESIA community H&S assessment

Climate-resilience externalities

ID	Category	Cashflow type	Monetisation approach (methodology)	Input dependency
CR-1	Physical climate risk to the asset	Imposed	Monetised expected impact of climate-driven water-availability and physical-risk stress on operations over the 18-year mine life; pairs with the §10.4 TNFD physical-risk surface where ND-GAIN country-adaptation context applies	Kabanga FS climate-risk assessment + ND-GAIN Tanzania (per §10.4)
CR-2	Transition-demand exposure	Disclosed context, not monetised at pilot	For nickel — a transition-demand metal — the late-transition stranded-asset logic that applies to fossil assets does not transfer directly; transition-demand exposure is surfaced as disclosed context, not monetised, at the pilot stage. Per §10.2 dimension 3 (geopolitical risk substrate) and IEA critical-minerals demand scenarios	IEA Global Critical Minerals Outlook scenarios (per §10.2 dim 3)

§4 — Quality Standard treatment

Derived — the externality category identification (§3), the cashflow-modifier structure (§2), and the counterfactual and discount-rate methodology choices (§2.1 and §2.2). These are Afrimintel editorial methodology, published with their reasoning.
Sourced — the conventional NPV the SAVi extension builds on (per §10.5, anchored to the Kabanga Feasibility Study of 18 July 2025; NPV @ 8% USD 1.58bn; IRR 23.3%; 18-year mine life; USD 942M pre-production capex); each externality input once drawn from a named primary source (Kabanga ESIA, FS, operator disclosures) with date.
Pending — every monetised externality value. The v0.1 panel scaffold on the Kabanga case-study page ships the SAVi-mining cashflow-modifier structure with all monetised values Pending. No externality value is monetised on this page, and none may be inferred or estimated; monetisation is a verification action against the Kabanga ESIA input layer.
Absent — where an externality category is material but the Kabanga ESIA does not publish a usable input, the line item is carried as Absent with the gap named, not silently dropped.

§5 — Relationship to §10.4 (TNFD) and §10.5 (discount rate)

The SAVi-mining adaptation sits between the §10.4 TNFD biodiversity substrate (which identifies nature-related dependencies and impacts qualitatively) and the §10.5 discount rate framework (which produces the conventional NPV the externality cashflows modify). TNFD answers "where does nature show up in this asset's risk profile"; SAVi-mining answers "what's the monetised externality-adjusted NPV". The two are complementary; SAVi-mining inputs lean on TNFD outputs for biodiversity-priority-area classification and basin context, and on §10.4 ND-GAIN country-adaptation context for physical climate risk.

The conventional NPV per §10.5 is the production discount rate convention (r = 8.0% + (10 − IC) × 0.8%) applied to the Kabanga FS cashflow envelope. The asset-level decomposition companion at the Discount Rate Derivation Framework v1 publishes a six-component decomposition for institutional users requiring that view; the SAVi extension layers on either anchor without modifying §10.5 or §10.4.

§6 — What SAVi-Mining Adaptation v1 does NOT do

Does NOT claim joint authorship with IISD, IISD endorsement, or IISD validation. This is a SAVi-aligned adaptation per IISD's published methodology. (See the Counterparty Extension header.)
Does NOT publish a monetised SAVi-extended NPV for Kabanga at v1.2 Phase 1. The methodology ships in progress; the populated valuation is a v1.2 Phase 2 deliverable that depends on Kabanga ESIA externality inputs not yet in hand.
Does NOT substitute for an operator's own ESIA, social impact assessment, or environmental and social due diligence. It is a methodology for surfacing externality-adjusted valuation context at screening grade.
Does NOT assert externality monetisation values. The category structure is published; the values are Pending against named inputs.
Does NOT modify the conventional NPV produced under §10.5. The SAVi-extended NPV is an explicit additive layer; the conventional NPV continues to be the platform's production output.
Does NOT generalise to other asset types at v1. The methodology is built for greenfield Ni-Cu-Co sulphide mining; Manono (lithium spodumene, disputed tenure) is the committed sequential second application once the method exists; broader generalisation across asset types is deferred.

§7 — Counterparty Extension protocol for IISD

This section formalises the Counterparty Extension protocol applied throughout the SAVi-mining adaptation, as a forward-state record:

Permitted framing in every internal and external Afrimintel communication: "Afrimintel SAVi-mining adaptation per IISD published SAVi methodology"; "SAVi-aligned methodology"; "applies SAVi externality-monetisation principles."
Prohibited framing until IISD editorially confirms collaboration in writing: "joint with IISD"; "co-developed with IISD"; "IISD-validated"; "IISD-endorsed"; "IISD-collaborated."
Kagera precedent overclaim is explicitly excluded. Prior IISD work in the Kagera region was hydropower, not mining; the SAVi-mining pilot at Kabanga rests on greenfield/pre-FID + clean tenure as its two structural reasons. Geographic-baseline-data convenience is not a precedent claim.
If IISD editorially confirms collaboration, the IISD disposition is recorded in the v1.2 Phase 2 audit log entry and the framing across all surfaces is updated in the same audit cycle.
If IISD declines collaboration, the adaptation continues as published — SAVi-aligned methodology per IISD's public framework, with no implied or claimed relationship. No further outreach is initiated without an editorial trigger.