Locating a Coir Unit: Alappuzha or Pollachi?
A coir cooperative in Alappuzha district is choosing between two sites for a new fibre-extraction and pith-processing unit. Site A is at Cherthala, inside the husk belt: husk is available within an average lead of 20 km, but the finished fibre must travel about 550 km by road to buyers in the Pollachi–Coimbatore coir cluster. Site B is near Pollachi itself, about 50 km from the buyers, but every tonne of husk would be hauled 550 km from Alappuzha. The cooperative's figures are: 3 tonnes of husk yield roughly 1 tonne of fibre, and about 2 tonnes of pith as a by-product; road freight is ₹8 per tonne-km for both husk and fibre; the coir pith would be sold loose to growers. Power at Cherthala is ₹6.50 per unit against ₹5.20 in Tamil Nadu, and Kerala wages are ₹700 a day against ₹550. The board is split, and one member argues that since labour and power are cheaper at Pollachi, the unit should move there.
1. Using Weber's least-cost logic, calculate the assembly-and-distribution transport cost per tonne of fibre for both sites and decide which site the weight-loss argument favours.
Read the worked answer
Material index = weight of localised material / weight of product = 3/1 = 3. The process is strongly weight-losing, so the pull of the raw material should dominate.
Site A (Cherthala) - per tonne of fibre produced:
- Assembly: 3 t husk × 20 km × ₹8 = ₹480
- Distribution: 1 t fibre × 550 km × ₹8 = ₹4,400
- Total transport ≈ ₹4,880
Site B (Pollachi) - same tonne of fibre:
- Assembly: 3 t husk × 550 km × ₹8 = ₹13,200
- Distribution: 1 t fibre × 50 km × ₹8 = ₹400
- Total transport ≈ ₹13,600
Site A is cheaper on transport by about ₹8,700 per tonne of fibre, which at this scale easily outweighs the power and wage gap (the two together are a small fraction of that sum). Moving nearer the market would mean transporting a bulky, low-value raw material instead of a compact product - exactly the error Weber's triangle is designed to expose. The board member's argument is sound about costs but attaches them to the wrong weight. Site A, in the husk belt, is the least-cost location.
2. The coir pith is to be sold loose, and the board also wants an export product. Explain how the pith and a finished coir mat would locate differently.
Read the worked answer
They sit at opposite ends of the same weight/value spectrum.
Coir pith (bulky, low value per tonne): pith is roughly two-thirds of the husk weight, extremely light and voluminous, and sells for little. Freight per tonne is therefore a large fraction of its price, and any long movement destroys the margin - this is the classic case for processing at the raw-material source and selling within the region, or compressing and baling before it travels at all. An uncompressed pith trade over 550 km is economically close to moving air.
Finished coir mat / geotextile (low weight, high value per tonne): value comes from weaving, design, branding and certification rather than from the raw fibre, so transport is a small share of price. Such a unit is footloose or market-oriented - it can sit near skilled weavers, near a port for export, or near the buyer, and will choose on labour skill, power reliability, design support and container access rather than on distance to husk.
The practical reading for the cooperative is a two-stage geography: extraction and pith processing in the husk belt at Cherthala, and the value-added weaving/export finishing either there (if skilled weavers and a port connection are available) or near Kochi's port and design clusters. Trying to make pith itself pay long-distance freight is the one option to reject.
3. The cooperative plans to export compressed coir pith in containers. What two freight-related checks should it make before committing, and what would make the plan fail?
Read the worked answer
Check 1 - value-to-weight after compression. Compute the free-on-board price per tonne of baled pith against the inland haulage to the port plus ocean freight per container. If freight exceeds roughly a quarter of the product's value, the export is fragile: any rise in bunker or container rates turns profit into loss. Compression ratio matters here, because a container that cubes out (fills by volume) before it weights out pays for empty space.
Check 2 - container and port logistics. Empty container availability, the cost of moving from Cherthala to Cochin versus Tuticorin, congestion and sailing frequency, and monsoon disruption on the coast. A low-value bulk product cannot absorb a week's detention or a re-handling charge.
What would make it fail: a buyer who pays for volume rather than weight, so that the compression investment is never recovered; a freight-rate rise with no long-term contract; or a competitor in Sri Lanka or Tamil Nadu with a shorter haul to port. The cooperative should test one or two trial containers with a landed-cost sheet before building a dedicated baling line - the decision is a freight-cost judgement, not a production one.