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BCG Medium Profitability Financial Analysis Operations

New Rubber Plant Investment

#Manufacturing

Practice this intermediate profitability case interview question from BCG in the Manufacturing sector. Includes detailed problem prompt, clarifying questions, structured framework, and expert recommendation. Part of ProHub's 835+ consulting case library.

ProHub Comment

This case tests operational constraint identification and financial modeling under capacity limitations. The key insight is recognizing that the plant's 10M lb capacity is constrained by transportation logistics (outbound trains can only handle 5M lbs/month), not production capability. Strong candidates identify the thin 1% margins and commodity price volatility risks that threaten investment viability despite positive short-term ROI.

Estimated Time 26 minutes
Difficulty Medium
Source Darden
52 / 100
The federal government of a foreign country is investigating whether to reopen a rubber factory in a western part of the country. The factory was operational in the past, but has not been used for 7 years. The plant was closed due to terrorism in the area. If rejuvenated, it may become a target for the rebels. All the equipment is usable, but the government would need to spend $12M on upgrades, which would allow the plant to produce 10M lbs of rubber per month. The demand for rubber is strong, but rubber must be transported by train to a port. Two trains a day can be used for this.

Clarifying Information

  1. How is rubber made? Gum resin is refined. Need 3lbs of gum resin to produce 1 lb of rubber
  2. How do we get resin? By train from the capital. Up to 4 trains can be used for this purpose.
  3. How much can we sell rubber for? $20 per pound. Gum resin costs $5 per pound.
  4. How many suppliers are there? We have identified one gum supplier
  5. Who are our customers? Rubber is highly commoditized. We would sell on the global markets.
  6. What is the government’s goal? Profitability, job creation, and economic development.
Mock Interview
Interviewer

The federal government of a foreign country is investigating whether to reopen a rubber factory in a western part of the country. The factory was operational in the past, but has not been used for 7 years. The plant was closed due to terrorism in the area. If rejuvenated, it may become a target for the rebels. All the equipment is usable, but the government would need to spend $12M on upgrades, which would allow the plant to produce 10M lbs of rubber per month. The demand for rubber is strong, but rubber must be transported by train to a port. Two trains a day can be used for this.

You

Thanks. Before analyzing, I'd like to clarify a few key questions...

Interviewer

Good question. Let me provide some background information...

You

Based on this, I suggest analyzing from these dimensions...

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A government is considering investing $12M to reopen a rubber factory. While the plant can theoretically produce 10M lbs/month, transportation logistics limit actual output to 5M lbs/month, yielding $1M monthly operating profit (1% margin). The 12-month payback period is attractive financially, but thin margins and terrorism risks require careful consideration.

Key Insights:

  1. Transportation (outbound trains) is the binding constraint at 5M lbs/month, not plant production capacity of 10M lbs/month
  2. Financial model shows $1M monthly operating profit ($100M revenue - $75M COGS - $8M labor - $10M overhead - $6M transport), yielding 12-month payback period
  3. Critical risks include 1% wafer-thin margins vulnerable to commodity price fluctuations, ongoing terrorism threat, single-supplier dependency for gum resin, and potential infrastructure failures on train tracks
  4. The case evaluates multiple success criteria: ROI (12-month payback), job creation, and economic development, requiring holistic rather than purely financial assessment

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