LATEST

Circular Yokohama Received the Kanagawa Decarbonization Award

On 2026/2/18

Circular Yokohama received the Dissemination and Promotion Division award at the Kanagawa Decarbonization Award in2026 organized by Kanagawa Prefecture. What is the Kanagawa Decarbonization Award In order to achieve a decarbonized society by 2050, this award system honors individuals, businesses, schools, and other entities that have implemented outstanding initiatives related to decarbonization. It is jointly […]

SDGs Locker: Extending the Life of Food Through Shared Urban Infrastructure

On 2026/1/29

We have added a new circular project “SDGs Locker” in our database. SDGs Locker is an unmanned, locker-type vending system designed to reduce food waste by selling items that are still safe and within their best-before date, but would otherwise be discarded. Introduced in Yokohama in January 2024, the project connects food producers and retailers […]

Reusable Toner Cartridges: Building a practical pathway from disposable printing to reuse

On 2026/1/28

We have added a new circular project “Reusable Toner Cartridges” in our database. The Reusable Toner Cartridges is a long-running initiative by Hara Trading Co., Ltd., based in Kanagawa Ward, Yokohama, that offers a concrete alternative to disposable office printing supplies. Since 1994, the company has been collecting spent genuine toner cartridges, carefully inspecting and […]

YOKOHAMA CIRCULAR DESIGN MUSEUM: A Moving Exhibition of Circular Ideas and Encounters

On 2026/1/27

We have added a new circular project “YOKOHAMA CIRCULAR DESIGN MUSEUM” in our database. The YOKOHAMA CIRCULAR DESIGN MUSEUM is a travelling exhibition that introduces the circular economy through tangible experiences, thoughtful design, and local stories from Yokohama. Operated by Circular Yokohama, the museum invites visitors to engage with circular living not as a concept, […]

Yokohama tests PP folder circularity from stationery to car parts

On 2026/1/26

Yokohama City has launched a pilot project to establish a resource circulation model for used plastic clear folders within the Minato Mirai 21 district. This is a collaboration between the municipal government, the Yokohama SDGs Design Center, Mitsubishi Estate, and Mitsubishi Estate Property Management, and they seek to turn common office waste into high-value industrial […]

Beer the First: Where Food Waste Meets Circular Brewing

On 2026/1/8

Bread that didn’t sell. Rice left behind. Grape skins after wine pressing. At Beer the First, these everyday “almost-wasted” ingredients find a second life in a glass of craft beer. Launched in 2021, the project began with RE:BREAD an eco-friendly beer brewed from unsold bakery bread in Yokohama. It has since grown into a playful […]

Upcycled Stationery Crafted from Discontinued Nautical Charts: From retired sea maps to everyday treasures

On 2026/1/6

Old sea maps still have stories to tell. This “Discontinued Nautical Chart Stationery” project by X-Port Co., Ltd. gives discontinued nautical charts a second life as beautifully crafted stationery and sundries. Once essential for safe navigation, these charts are regularly retired as coastlines and sea conditions change. Instead of becoming waste, they’re transformed into envelopes, […]

Sustainable Seafood Project: Japan’s First University Cafeteria Bringing Ocean-Friendly Meals to Students

On 2026/1/5

A lunch tray can be a gateway to ocean sustainability. The Sus-Sea Project is Japan’s first initiative to bring sustainable seafood into a university cafeteria led by Yokohama City University. Launched in 2022 by TEHs, an official student group focused on the Sustainable Development Goals, the project turns everyday meals into meaningful action. By serving […]

Yokohama City launches textile drive for GREEN×EXPO 2027 uniforms

On 2025/12/25

Yokohama City has launched a collaborative initiative to collect unwanted clothing from residents and recycle the material into staff uniforms for the upcoming GREEN×EXPO 2027. The circular fashion project began in 2025, and is being conducted in partnership with Harch Inc., the operator of Circular Yokohama and fibre recycling firm Nakano Co., Ltd. Yokohama City […]

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What is Circular Yokohama?

Circular Yokohama is an online platform to accelerate the circular economy in Yokohama city. We aim to solve various local issues, create new job opportunities and achieve a thriving community by shedding light on goods, services and personal skills that have been overlooked in a conventional linear economy and making a transition towards circular economy.

PROJECTS

Coffee Grounds Art

Used coffee as a canvas? Discover Coffee Grounds Art, where leftover coffee is reborn as beautiful artwork and creative workshops. From waste to wonder, find how circular ideas are brewing in Yokohama.

buøy

a project to transform discarded ocean plastic into beautiful traditional crafts. The project produces beautiful molded plates while mixing different types and colors of plastic materials. The idea was created by “Plas+tech project”

Circular Gacha

A capsule toy machine that you can play by putting a bottle cap instead of a coin. It provides an enjoyable learning experience of local resources and materials circulation.

Coco&K.

Coco&K. imports lovely, eco-minded, fairtrade bags from the Philippines. The products are up-cycled from discarded aluminum juice packages. It helps the locals live independently and keeps the environment clean.

Aquaponics

Aquaponics is a system of “circular organic agriculture” that crosses hydroponics and aquaculture. It minimizes resource circulation and promotes local consumption to rvitalize local communities.

Craft Beer Paper

Craft beer paper is a recycled paper made from malt waste. kitafuku Inc. works with local breweries and restaurants to turn waste into valuable paper products to achieve up-cycling.

OTHER PROJECTS