Key takeaways
- Fasal Bio, a Zagreb-based renewable materials company, has secured a €7 million growth investment led by BlackPeak Capital.
- Founded in 2012 by plastics engineer Krešimir Hagljan, the company has developed Naturion, a wood-based composite that runs on standard plastic processing lines.
- The capital will expand production capacity, strengthen commercial and R&D teams, and support global rollout across the US and Western Europe.
- The round is BlackPeak Capital’s first direct investment in Croatia and its final deal from the SE Growth Equity Fund I vehicle.
Quick recap
Zagreb-based Fasal Bio has raisedb to accelerate the global expansion of its Naturion renewable materials platform, which is designed to replace conventional plastics in consumer and industrial products. The funding, led by BlackPeak Capital, will be used to scale production, build out commercial and R&D capacity, and meet surging demand from customers in Western Europe and the US. The news was first reported by EU-Startups and announced publicly via an EU-Startups post on X.
Scaling a drop-in alternative to fossil plastics
Fasal Bio develops Naturion, a proprietary wood-based composite made from wood and other natural raw materials that can be processed using existing thermoplastic infrastructure such as injection moulding and extrusion. This drop-in compatibility reduces switching costs for manufacturers because they can adopt renewable materials without new machinery or process overhauls.
The company applies the material across segments including household goods, toys, and broader consumer products, positioning it as a direct substitute for fossil-based plastics in high-volume categories. The €7 million investment comes from BlackPeak Capital, a growth equity fund focused on Southeast and Central Europe, and represents its first direct investment in Croatia and the final deal from its SE Growth Equity Fund I.
Capital will primarily fund an expansion in production capacity, hiring for commercial and research teams, and the development of new Naturion-based product lines. According to BlackPeak and company statements, demand for Naturion already exceeds current output, with customers in the US and Western Europe integrating the material into commercial product portfolios, underscoring the need for scaled manufacturing.
Why this funding matters in climate materials?
The investment lands in a market where regulators and brands are under mounting pressure to reduce reliance on fossil-based plastics and improve product recyclability and carbon footprints. Bio-based and wood-based composites are emerging as viable alternatives to conventional plastics across sectors like automotive, building products, and consumer goods, although they must match performance and processing characteristics to gain adoption.
Solutions like Naturion that work on existing plastic processing lines can accelerate that transition, because they slot into current industrial workflows rather than requiring new capex. At the same time, investors are increasingly targeting specialty material platforms that combine IP, manufacturing scalability, and clear ESG outcomes, and BlackPeak’s move signals growing regional capital interest in Central and Eastern European climate tech.
Fasal Bio’s decade-plus of technical development and early international customer base give it a differentiated position among small and mid-sized renewable composite players that are competing to capture share before large incumbents fully pivot.
Competitive landscape and comparison
Below, Fasal Bio is compared with two similarly sized European renewable materials players: Sulapac (Finland) and BioFase-like peer “GreenCompo” as a placeholder mid-market bio-composite producer.
| Feature/Metric | Fasal Bio (Naturion) | Competitor A: Sulapac | Competitor B: “GreenCompo” mid-market peer |
| Core material base | Wood-based renewable composites with natural fillers | Wood-based biocomposites with biopolymer binders | Mixed biofiber composites (hemp, flax, wood) |
| Processing compatibility | Drop-in for injection moulding and extrusion lines | Compatible with injection moulding, extrusion | Compatible with select moulding processes |
| Main applications | Household goods, toys, consumer products | Packaging, cosmetics containers, consumer goods | Building products, basic consumer items |
| Geographic focus | Croatia HQ, expanding across Western Europe, US | Nordics and wider Europe | Regional European markets |
| Scale-up capital (recent) | €7 million growth round from BlackPeak Capital | Multiple undisclosed rounds, strategic partners | Smaller regional funding, undisclosed |
| Industrial integration pitch | Minimal capex, use existing thermoplastic lines | Sustainable premium materials for brands | Cost-focused green alternative |
While Fasal Bio appears strongest on drop-in industrial integration and fresh growth capital for scaling, Sulapac retains an edge in brand recognition and premium packaging relationships across Europe. A typical mid-market peer remains more limited to regional segments and cost-driven projects, which leaves room for Fasal Bio to occupy a more scalable, technology-led position in the renewable composites market.
TechnoTrenz’s Takeaway
In my experience, materials startups that can act as true drop-in replacements in existing factories have a far better chance of scaling than those that require new equipment, and Fasal Bio fits neatly into that first category. I think this is a big deal because a €7 million ticket, deployed into a company with more than a decade of technical development and real overseas demand, looks like a genuinely bullish signal for Central and Eastern European climate tech.
I generally prefer platforms that can serve multiple product categories, and Naturion’s reach from toys to household goods gives it diversified exposure rather than relying on a single niche. For readers tracking the shift away from fossil-based plastics, this round suggests not just investor enthusiasm, but a maturing supply base that end users can realistically plug into over the next few years.
