Granite Materials: Buy the Supplier or Keep Buying From Them?
Granite Materials operates in building materials across India. It buys a critical input worth ₹171 Cr a year from 3 suppliers, who earn an estimated 33% margin on it.
The strategy team argues the company should build its own plant: ₹663 Cr of capital and ₹81 Cr a year of fixed cost, running economically only above about 68% utilisation.
The CEO's case is that the supplier margin is "our money". The COO points out the company has never run a plant of this kind, and that demand for the end product has swung by more than 20% in each of the last three years.
context
- end demand volatility pct
- 20
- prior manufacturing experience
- none
current
- margin pool cr
- 56.4
- supplier count
- 3
- annual purchase cr
- 171
- estimated supplier margin pct
- 33
build option
- capex cr
- 663
- annual fixed cost cr
- 81
- economic utilisation threshold pct
- 68
Advise the board. Your answer should provide:
- Analysis — the margin at stake versus the cost of capturing it, and the break-even volume.
- Risks — operational, strategic and demand-related.
- Recommendation — integrate, partner, or keep buying, with the condition that changes it.
State any assumptions you make.
80 points, 60% to pass.
- recommendation15
- market analysis25
- risk assessment20
- financial analysis20
Reveal suggested structure
Size the margin pool, subtract the fixed cost of owning it, then test against demand volatility and the utilisation threshold.