Idea Bank — Request for Climate Startups

Copper Scrap Refining

Collect and refine copper from e-waste and wire offcuts into purified rod for resale.

Circular MaterialsMicrobusinessProven elsewhereBD fit · Medium
4 min read750 words
Scalability 3/5Carbon credit · UnlikelyManufacturingMechanical engineeringLogistics & distributionSales & BD
Copper Scrap Refining

The ask

Operate a copper scrap collection and fire-refining operation that upgrades mixed copper waste from electronics dismantlers, wire factories, and cable recyclers into 99%+ purity rod — sold to cable manufacturers and electrical contractors at a meaningful discount to LME-linked virgin copper.

Why now

Global copper prices have risen above $9,000/tonne, making secondary copper economics compelling even at small scale. Bangladesh's garment and electronics assembly sectors generate consistent copper offcuts with reliable purity. The informal sector currently exports raw scrap to China at low value — a domestic refinery captures that upgrade margin locally.

Why Bangladesh

Bangladesh's Dhaka EPZ and Chittagong industrial zones host hundreds of cable and electronics manufacturers generating copper offcuts daily. The country also imports significant quantities of consumer electronics (phones, fans, appliances) whose end-of-life copper ends up in informal Hazaribagh-type clusters with no formal buyer. Domestic cable manufacturers are the natural offtake partner — they currently import copper rod from India and China, facing both FX risk and lead times.

As a business

Margin comes from the spread between scrap copper (typically 60–75% of LME) and refined rod sold at 85–92% of LME — a 15–25% value-add on the copper price plus volume throughput. A small fire-refinery (induction furnace + rod-rolling line) can process 5–10 tonnes per day at SME capital cost. Collection is via a network of paid aggregators at electronics repair clusters; sales are direct to cable factories on monthly supply contracts.

Economics

Move the sliders to model your own copper refinery. Defaults are order-of-magnitude estimates — pressure-testing them is part of what a founder pitches us.

Model a copper scrap refinery

Margin per kg
৳180.0/kg
Monthly payroll (all wages)
৳3,433,636
Labor cost per tonne
৳24,881/t
Daily profit
৳928,538
Annual profit
৳259,990,514
Payback (years)
0.2 yr
Impact at this scale
CO₂e avoided
1,428 tCO₂e/yr
Jobs created
80 FTE
FX saved
15,120 US$/yr
Cumulative revenue Cumulative cost Profit Loss
startyr 1yr 2yr 3yr 4yr 5Break-even ~3 months

Clears its setup cost after ~3 months, then profit (volt) from there. Hover or tap the chart for any month.

Illustrative model — defaults are order-of-magnitude estimates from public data, not a forecast. Pressure-test every number before you build.

What ZEPH would back

A founder who combines industrial procurement experience (buying scrap at scale) with a technical grasp of metallurgical refining — or who has secured a technology partner. A signed offtake MOU from a domestic cable manufacturer and a demonstrated scrap supply chain of at least 2 t/day would be the proof points we want to see before leading a seed round.

Impact

A 6 t/day copper scrap refinery displaces roughly 1,500 tonnes of imported copper rod per year, saving Bangladesh approximately $13M in hard-currency imports at current LME prices. Secondary copper refining is 85% less energy-intensive than smelting virgin ore, avoiding an estimated 4,000–5,000 tCO₂e per year relative to the Chinese and Indian virgin-rod imports it replaces. The operation also formalises the informal Hazaribagh-type electronics-dismantling cluster, creating 60–80 direct jobs in a regulated, lower-toxicity environment.

Also being built elsewhere

Companies proving the model in other markets.

More Circular Materials ideas

Other climate businesses we want built.