AMSilk strengthens management team with key hires of Ralph Fraundorfer and Ctibor Kohutovic to Management Board

Neuried, Germany, 23 April 2024: AMSilk GmbH (“AMSilk”), a global leader in advanced materials made from spider silk-based proteins, today announces the appointments of Ralph Fraundorfer and Ctibor Kohutovic to its Management Board starting immediately.
Ralph Fraundorfer has been appointed as Chief Financial Officer (CFO) and will lead the finance team, with responsibility for all financial issues, such as company accounts, financing and risk management. Ralph’s professional finance career spans over 20 years, having worked for companies such as Shell, Syngenta and Actelion Pharmaceuticals. Most recently, Ralph was CFO of Tropic Biosciences, a pioneering company in the field of agricultural gene editing, where he built the finance function, enabling strong growth from 40 to over 150 employees and successfully closing several financing rounds.
Ralph Fraundorfer officially succeeds Arne Treinies as CFO, with Arne leaving the Company to pursue other opportunities. ”We would like to thank Arne for his important contribution to the scale-up of AMSilk”, Ulrich Scherbel (CEO) says. “In his role as CFO he has professionally built up the finance and organizational structures of the Company. We wish him continuous success and all the best for his new challenges.”
Ctibor Kohutovic joins as Chief Production Officer (CPO), with responsibility for driving AMSilk’s industrial scale up as it moves into the commercialization phase. Ctibor will focus on the Company’s global protein production, developing production capacities with new and existing CMOs, improving capabilities and reducing costs. Ctibor has extensive experience in global production processes, process improvement and contract manufacturing, beginning his professional career at Evonik in 1998 as a Fermentation Process Engineer at the Fermas site. Most recently, he was Head of Strategic Projects at Evonik Operations, as well as Site Controller and Strategic Project Manager at Evonik Fermas.
The key appointments of Ralph and Ctibor complete the AMSilk Management Board, alongside current Chief Executive Officer, Ulrich Scherbel, and Chief Scientific Officer, Gudrun Vogtentanz.
Ulrich Scherbel, Chief Executive Officer at AMSilk, said: “Ralph and Ctibor are two proven experts, whose industry knowledge, experience and track record are of immense importance for the future development of AMSilk. These appointments complete our Management Board, and I look forward to working alongside them both to drive the Company’s continued industrial scale-up towards profitability.”
Ralph Fraundorfer, Chief Financial Officer at AMSilk, added: “AMSilk has a stellar team and I am looking forward to helping scale up production of a fantastic product that the world really needs. AMSilk has products with a real purpose and people with great passion. For me, these are the most important elements of a successful company, and AMSilk has them all.”
Ctibor Kohutovic, Chief Production Officer at AMSilk, said: “Joining AMSilk feels like the perfect alignment of my passions, expertise, and aspirations. AMSilk’s vision and potential are truly inspiring. I am very motivated to play my part in ramping up production so that we can launch our spider silk-based products to the market.”
Wolfgang Colberg, Chairman of the Board, AMSilk, commented: “AMSilk is at a pivotal point in its development. To attract individuals of this caliber to the Management Board is testament to the progress AMSilk has made towards its goal of becoming a leading protein solutions business for a variety of industries.”
AMSilk’s spider silk-based protein fibers are the gold standard, offering high-performance qualities which translate to a wide range of applications in the textile and automobile industries. Based on their exceptional natural properties, which can be tailored to the specific needs of the market or customer, AMSilk’s high-performance material outweigh many natural or fossil-based materials, while being verifiably biodegradable.
In January 2024, AMSilk announced a partnership with 21st.BIO to accelerate production using a new protein production strain created from highly specialized precision fermented microorganisms, ensuring that AMSilk can meet demand as it increases production from the laboratory to industrial scale. The new strain ensures extracellular expression of silk

proteins, enabling manufacturing at unprecedented productivity levels due to higher yield and greater efficiency, thereby reducing production costs. In March 2024, AMSilk also announced an update on its strategic R&D collaboration with BRAIN Biotech, which allows the structural proteins underlying AMSilk’s protein fibers to be modified at the amino acid level enabling products to be easily tailored to specific market requirements.
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AMSilk GmbH
Isabel Rosenberger
Senior Manager Marketing & Communications
Tel. +49 (0) 151 6106 3269

Optimum Strategic Communications
Nick Bastin, Vici Rabbetts, Katie Flint
Tel: +44 (2)03 922 1906

About AMSilk
AMSilk is a frontrunner in advanced biomaterials made from spider silk-based proteins. Using a patented technology platform, protected by a best-in-class patent portfolio, we are pushing boundaries in the field of bio-based materials. At AMSilk, we turn man-made proteins into formulations, including fibers and yarns, hydrogels and silk powder. The high-performance qualities of our material enable a wide range of applications in the textile, homecare, biomedical, and automobile industries and bring breakthrough benefits for products and customers. AMSilk’s materials go beyond earlier bio replacements; they can be tailored to specific market or product requirements, are biodegradable according to international standards and have a significantly lower CO2 greenhouse gas emission and less land and water use compared to other protein fibers. The Company has already collaborated with industry-leading global companies and plans to continue partnering with enterprises worldwide to pursue the vision of enabling true change through intelligent biotech materials.
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