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Sunshiki closes pre-seed round led by Circular Economy & Nature Positive Fund I to scale seaweed-based cattle methane reduction technology.
PRIVATESep 03, 2026•5 days ago
Round Type
Pre-Seed
KōchiBiotechnologyAgriculture and Farming
Investors
Ando Hazama CorporationSbi New Business Investment Co., Ltd.Circular Economy & Nature Positive Fund I
Description
Sunshiki Co., Ltd., a Kochi University startup founded in February 2024, has closed a pre-seed funding round to commercialize a seaweed-based feed additive that reduces methane from cattle. The round was led by Circular Economy & Nature Positive Fund I, managed by SBI New Business Investment Co., Ltd., with participation from Ando-Hazama Corporation. The additive uses Asparagopsis, a red seaweed shown to cut cattle methane emissions by 49–77%. Sunshiki will use the capital to scale production, advance product development, and build out its organization.
Company Information
Company
Sunshiki Ltd
Location
Kōchi, Kochi Prefecture, Japan
About
Sunshiki Co., Ltd. is a Kochi University startup founded in February 2024 that develops seaweed-based feed additives to reduce methane emissions from cattle. The company uses Asparagopsis, a red seaweed that has been shown to cut cattle methane emissions by 49–77%. Sunshiki aims to leverage Japan's seaweed cultivation expertise to commercialize this climate solution at scale. The startup holds J-Startup WEST certification and focuses on addressing ruminant methane, which accounts for approximately 5% of global greenhouse-gas emissions.
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KōchiBiotechnologyAgriculture and Farming