Start with the two benefits of production stripping
Ind AS 16 Appendix B applies to waste removal during the production phase of a surface mine. Account for the benefit realised as current inventory under Ind AS 2. Recognise a stripping activity asset for improved access only if future benefits are probable, the relevant ore-body component can be identified, and its stripping costs can be measured reliably. Development-phase stripping and underground mining need separate scoping.
Read the applicable text: MCA Ind AS 16, Appendix B paragraphs 5–16 MCA Ind AS 2, inventory costs MCA Ind AS 36, impairment.
Build the component and cost file
Map the campaign to a specific volume of ore whose access has improved. Link surveys, bench plans, waste and ore volumes and the production schedule to the cost records. A mine-wide average alone cannot show which component benefits. Measure a qualifying asset initially at the costs directly incurred to improve access to the identified component plus directly attributable overheads. Exclude incidental operations that are unnecessary for stripping to continue as planned from the stripping asset’s cost.
Allocate when separate identification is unavailable
If costs of the inventory and asset cannot be separately identified, Appendix B requires an allocation based on a relevant production measure for the identified ore-body component. Compare actual activity with the benchmark expected for current production. Waste extracted against expected waste for the ore produced can be one measure; other possible measures compare actual inventory cost with expected cost, or actual mineral content extracted with the expected content for a given quantity of ore. Document why the selected measure reflects the extra activity; the standard does not impose a single universal cost formula.
Keep subsequent measurement tied to access
Treat the stripping activity asset as an addition to or enhancement of an existing asset and classify it consistently with that asset. After recognition apply cost or revalued amount, as relevant, less depreciation or amortisation and impairment. Depreciate or amortise systematically over the expected useful life of the identified component made more accessible, normally using units of production unless another method is more appropriate. Use the whole ore body only in the limited circumstances where the stripping activity improves access to the whole remaining ore body.
Reconcile technical and financial changes
Track costs, component estimates, mined units, closing accessible units and any impairment separately. Investigate changes in mine sequence and resource estimates with engineering and finance. Keep the resulting inventory and stripping asset journals distinct so the same expenditure is not capitalised twice.
Six worked illustrations
All facts and amounts are fictional. Calculations illustrate the stated assumptions, not a predetermined legal outcome.
Illustrative example 1: Split directly identifiable costs
A campaign costing ₹84 lakh includes ₹50 lakh identified with current ore and ₹34 lakh identified with improved future access that meets all three criteria. The initial split is ₹50 lakh to inventory costing and ₹34 lakh to the stripping asset.
Illustrative example 2: Use a waste-volume benchmark
Current output is 20,000 tonnes and the component benchmark is three waste tonnes per ore tonne. Expected waste is 60,000 tonnes; actual waste is 75,000 tonnes. Assuming the ₹90 lakh shared cost varies proportionally with waste moved and other costs are separately identified, the 15,000 excess tonnes represent 20%, or ₹18 lakh to the asset and ₹72 lakh to inventory.
Illustrative example 3: Add only attributable overhead
The future-access activity has ₹24 lakh directly incurred cost and ₹3 lakh attributable overhead. Another ₹2 lakh relates to incidental work unnecessary for the campaign. On the assumptions, asset cost is ₹27 lakh, not ₹29 lakh.
Illustrative example 4: Use the identified component denominator
A ₹48 lakh asset has no residual value and supports access to 120,000 tonnes of the identified component. If 30,000 tonnes are extracted after availability, depreciation is ₹12 lakh, leaving ₹36 lakh before impairment.
Illustrative example 5: Reconcile depreciation and impairment
Opening carrying amount is ₹39 lakh, with ₹11 lakh qualifying additions, ₹8 lakh depreciation and ₹5 lakh impairment determined under the applicable standard. Closing carrying amount is ₹37 lakh.
Illustrative example 6: Separate unsupported future-access costs
Of ₹70 lakh cost, ₹55 lakh is supported for current inventory costing under Ind AS 2. The remaining ₹15 lakh is claimed as access cost but no component can be identified. No stripping asset is recognised for that ₹15 lakh. If the costs do not qualify for inventory or any other asset, expense them as incurred.
Ten-step verification table
| Step | Action | Evidence |
|---|---|---|
| 1 | Confirm surface mine and production phase | Production commencement and site records |
| 2 | Identify distinct benefits | Ore and waste campaign analysis |
| 3 | Map the accessible component | Survey and mine plan |
| 4 | Test all recognition criteria | Probable benefit and measurable cost evidence |
| 5 | Separate attributable expenditure | Job-cost ledger and overhead basis |
| 6 | Select a benchmark if required | Component-specific production assumptions |
| 7 | Tie split costs to journals | Inventory and asset postings |
| 8 | Identify the existing asset enhanced | Asset register and accounting classification |
| 9 | Calculate systematic depreciation | Component units and reserve reconciliation |
| 10 | Review impairment and close balances | Updated mine plan and roll-forward |
Sixteen practitioner FAQs
1. Does Appendix B apply before production starts?
Its subject is production-phase stripping. Assess development work separately.
2. Does it cover underground development?
The appendix addresses surface-mine production stripping.
3. Does all waste removal create an asset?
No. Test the two benefits and the asset criteria.
4. What is the inventory part measured under?
Apply Ind AS 2 for the benefit realised in current inventory.
5. What if the component cannot be identified?
The future-access recognition criteria are not all met.
6. Can a pit-wide strip ratio always serve as the benchmark?
No. Use a relevant measure for the identified component.
7. Are waste tonnes the only permissible measure?
No. The appendix describes other possible production measures.
8. Is the cost split mandatory when both parts are separately identifiable?
Use the separately identifiable costs; the benchmark allocation applies when they cannot be separated.
9. Can all site overhead be capitalised?
No. Identify the directly attributable overhead of the qualifying activity.
10. Do incidental operations form part of stripping asset cost?
Exclude operations unnecessary for production stripping to continue as planned.
11. Is the asset automatically standalone PPE?
It is an addition to or enhancement of an existing asset and follows its classification.
12. Can depreciation be based on total mine reserves?
Use the expected life of the component made more accessible, subject to the appendix's narrow whole-ore-body circumstances.
13. Is units of production invariably required?
It is used unless another method is more appropriate.
14. Should an impairment adjustment affect the inventory allocation retrospectively?
Do not mechanically reopen earlier costs; account for the impairment under the applicable requirements.
15. What if the mine plan changes?
Review affected component assumptions, depreciation and impairment indicators.
16. What is the strongest control against duplicate cost?
Tie both journal destinations back to a single campaign cost pool.
Official sources
MCA Ind AS 16, Appendix B paragraphs 5–16 MCA Ind AS 2, inventory costs MCA Ind AS 36, impairment