Greenwich (China) Technology Development Ltd.
About us
/ BOTEC (Blue Ocean Algae Membrane) /
Pioneering Nature-Derived Packaging Solutions --- BOTEC, a subsidiary of Green Fresh Group (HK: 1084), is transforming sustainable packaging through innovative seaweed-based technology. Our groundbreaking fromSeaweed™ technology converts marine resources into crystal-clear, biodegradable films that deliver packaging functionality whilst returning safely to nature.
/ Our Heritage /
Building on Green Fresh Group's three-decade expertise as a global leader in hydrocolloid manufacturing, BOTEC represents the evolution of this specialist knowledge into sustainable packaging innovations. Our science-backed approach combines deep material understanding with environmental responsibility.
/ Innovation Through Nature /
Our breakthrough lies in developing fully bio-based, biodegradable films that provide a considered alternative to conventional materials. These seaweed-derived solutions have achieved food contact safety certifications whilst maintaining exceptional optical clarity and converting compatibility.
BOTEC’s innovation is recognised with the Forbes China 2025 “Innovative Brands in Industry Development” Award, underscoring our commitment to scalable, real-world sustainability.
/ Packaging Solutions /
Commercial Applications --- Banking & Financial Services: Crystal-clear window films for billing envelopes ; Corporate Communications: Biodegradable window film solutions for business mailings ; Food & Beverage: Ready-meal container windows, bakery packaging applications, food service packaging solutions; Retail & Luxury: Premium gift packaging windows, Transparent display solutions, Brand-conscious sustainable alternatives ; Environmental Credentials: 100% bio-based carbon content, Biodegradability in natural environments, Food contact safety certified, Chemical-free, Zero microplastic residue, Natural decomposition without industrial processing
/ Technical Advantages /
Superior optical clarity, Machine compatibility, Excellent seal integrity, Consistent performance, Food contact safe
/ Sustainability Vision /
BOTEC is dedicated to transforming packaging through practical, environmentally responsible solutions. We support brands in meeting their sustainability commitments whilst maintaining premium packaging quality.
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Visit BOTEC at UK Packaging Innovation 2026 to discover how our fromSeaweed™ technology can advance your sustainable packaging goals.
Products & services
BOTEC fromSeaweed™ MAIL Window Film
fromSeaweed™ MAIL Window Film transforms traditional envelope windows with a sustainable solution derived from seaweed. This innovative film directly replaces conventional plastic windows while maintaining all essential performance requirements. Key Benefits: • High transparency for postal automation reading • Direct compatibility with existing envelope converting equipment • Smooth running on high-speed inserting machines • Natural low static properties due to moisture affinity • Certified plastic-free and biodegradable Perfect for financial institutions, government agencies, and corporate communications seeking sustainable alternatives without machinery modification.
BOTEC fromSeaweed™ DISPLAY Window Film
Transforming food packaging windows with innovative sustainability. fromSeaweed™ DISPLAY is a bio-based film engineered specifically for dry and chilled food packaging applications where product presentation and oil resistance are essential. Developed from renewable seaweed resources, this advanced film features: • Superior clarity for optimal product display • Excellent oil/grease resistance • Anti-fog performance for chilled conditions • Food contact safe • Converting friendly Recommended Applications: • Chilled sandwich box windows • Dry bakery packaging viewing panels • Cold deli container windows • Ambient snack packaging windows This sustainable solution offers brands a unique opportunity to showcase their products while demonstrating environmental responsibility. The film provides excellent oil barrier properties while maintaining exceptional clarity, making it ideal for premium food presentation in appropriate temperature conditions. Meeting international food safety standards and certified plastic-free, fromSeaweed™ DISPLAY helps food brands transition to sustainable packaging without compromising on essential barrier properties or presentation quality.
