Idea Bank — Request for Climate Startups
Mycelium Biomaterials
Grow mycelium-bound composites from agricultural waste to replace foam packaging and non-structural panels.
The ask
Grow mycelium-bound composite materials in Bangladesh using agricultural waste — rice husks, jute shives, sugarcane bagasse — as substrate, producing biodegradable packaging blocks, acoustic panels, and lightweight non-structural boards as substitutes for expanded polystyrene and MDF.
Why now
Ecovative (US) and Mogu (Italy) have de-risked the production process at scale; the IP is either open or widely available through academic channels. Bangladesh's single-use plastic ban, enacted in 2002 and re-enforced in 2023, is creating genuine procurement pressure on FMCG and electronics companies to find alternative protective packaging. Mycelium packaging grown on rice-husk substrate costs $0.40–0.80 per litre in US facilities — at Bangladeshi labour and agricultural-waste prices, that halves.
Why Bangladesh
Bangladesh produces approximately 8 million tonnes of rice per year, generating an enormous volume of husks that are currently burned or dumped. Jute shives — the woody inner core of jute stalks — are a near-zero-cost byproduct of the country's jute processing industry. Both are ideal low-nitrogen substrates for fast-fruiting mycelium species like Ganoderma and Pleurotus. The export packaging sector — garments, electronics, ceramics — spends heavily on EPS that could be replaced.
As a business
Primary revenue is B2B sales of custom-moulded mycelium packaging to garment exporters, electronics distributors, and pharmaceutical companies, at ৳80–150 per cubic decimetre — competitive with mid-grade EPS once the Bangladesh plastic surcharge is factored in. Acoustic tile and decorative panel lines serve the growing Dhaka interior fit-out market. The substrate cost is near zero; energy and inoculation are the main variable costs.
Economics
Move the sliders to model your own mycelium materials facility. Defaults are order-of-magnitude estimates — pressure-testing them is part of what a founder pitches us.
Model a mycelium biomaterials facility
Clears its setup cost after ~2.9 years, 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 with microbiology or materials science training who has already produced mycelium composite samples — not just watched YouTube demos — and has at least one FMCG or garment-export company willing to test a packaging run. We want the maker-scientist, not the pitch-deck dreamer.
Impact
EPS packaging production emits roughly 5 kg CO₂e per kg; mycelium packaging grown on rice husk is near-carbon-neutral at the production stage, avoiding that baseline for every kilogram of EPS it displaces. Bangladesh's annual rice husk volume alone could theoretically substrate enough mycelium packaging to replace a substantial portion of the country's EPS import bill — currently estimated at $30–50M per year — keeping that hard currency in-country. At facility scale the business creates skilled biomanufacturing jobs that don't currently exist in Bangladesh, building a technical workforce for the broader bioeconomy.
Also being built elsewhere
Companies proving the model in other markets.
Pioneer of mycelium packaging at commercial scale; grew the market from lab curiosity to B2B supply agreements with Dell and IKEA, validating the rice-husk substrate model.
First European mycelium composite packaging producer and Ecovative licensee; demonstrates the model can be replicated outside the US at Bangladeshi-analogous labour and waste-input costs.
Mycelium acoustic tiles and interior panels commercially available — proves the high-value decor/fit-out product line that can sit alongside packaging revenue.
More Biomaterials ideas
Other climate businesses we want built.