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About OKASODACHI
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The population continues to grow,
and consumption of marine products continues to increase.

Natural fish catches have already reached their peak,
and marine aquaculture is rapidly expanding around the world.
As a result, the environmental impact of fish droppings and leftover feed is becoming an
increasing problem.

To leave delicious fish and beautiful nature to the next generation.
What we need now is land-based aquaculture that does not depend on the sea.

We, FRD Japan, will create a future where freshly caught, safe and secure trout can be produced
anywhere in the world using a Closed RAS system.
千葉県産陸上養殖生サーモン
// About okasodachi

Land-farmed raw salmon from Chiba Prefecture

千葉県産陸上養殖生サーモン

OKASODACHI island-cultured fresh salmon from Chiba Prefecture.

You can enjoy the freshness that only domestic raw salmon can provide all year round.

OKASODACHI is a sustainable, antibiotic-free, ASC-certified, and earth-friendly salmon.

OKASODACHI realizes the compatibility between human society and the natural environment from the perspective of fish.

Learn more about "OKASODACHI"
// our technology

A Closed RAS system realizes a sustainable future for food.

閉鎖循環式陸上養殖

FRD Japan’s Closed RAS system uses a unique filtration technology that utilizes bacteria.

It makes it possible to conduct aquaculture while circulating water with minimum exchange.

It can prevent marine pollution

Earth-friendly culture methods that do not pollute oceans and rivers.

No need for seawater cooling costs

Dramatically reduces electricity costs, which have been a bottleneck for land-based aquaculture.

It can be cultured "anytime, anywhere."

Delivery of the freshest fish all year round from the suburbs of consumption areas with minimal transportation costs.

No risk of fish diseases from seawater

Enables stable production without the use of antibiotics.

閉鎖循環式陸上養殖
Learn more about Closed RAS system
// our projects

Trout Salmon Land Culture Project

Demonstration experiment plant

Fish species : Salmon trout
Production : 30 tons / year
Saitama Plant (from hatching to 6th month)
Location : Iwatsuki Ward, Saitama City, Saitama Prefecture
Start of operation : December 2017

Kisarazu Plant (6th month to shipment)
Location : Kisarazu City, Chiba Prefecture
Start of operation : July 2018
First shipment : April 2019

Commercial plant

Fish species : Salmon trout
Production : 3,500 tons / year

Location : Futtsu City, Chiba
Start of construction : July 2023
Operation start:2026 (planned)
Sales start:2027(planned）
Learn more about the Projects
150,000尾+
生産・出荷匹数

FRDジャパンでは陸上養殖事業の商業化を目指し、自社でトラウトサーモンの大規模養殖プラントの建設、操業を行っています。

5,000トン
年間生産実績

現在は千葉県木更津市にてパイロットプラントを建設・運営中で、ここでの結果を踏まえて2021年以降に商業プラントへの拡張を行うことを目指しています。

// our team

Human resources with diverse backgrounds
gather under the keyword "land aquaculture"

十河 哲朗

Tetsuro Sogo CEO

辻 洋一

Yoichi Tsuji COO

小泉 嘉一

Yoshikazu Koizumi CTO

Learn more about team members
// RECRUIT

"Amaze the world with our trout and technology."
Will you dedicate your expertise, career, and passion to this challenge?

Go to recruit page
// latest NEWS

Latest News

We will send you the latest information about FRD Japan and “OKASODACHI”.

FRD Japan Completes Third-Party Allotment to The Norinchukin Bank

2025年11月21日

— Steady progress on launching the Futtsu commercial plant (Phase 2) and Accelerating Development of the Next large-scale Plant (Phase 3) — FRD Japan Co., Ltd. (“FRD”, Head Office: Saitama; Representative: Tetsuro Sogo) today announced the completion of a third-party allotment of shares (the “Transaction”) to The Norinchukin Bank (“NCB”, Head Office: Tokyo; President & CEO: Taro Kitabayashi). The proceeds

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Japan International Seafood Show 2025.

2025年8月20日

We announce that FRD Japan exhibits at Japan International Seafood Show 2025 from the 20th to 22nd August at Tokyo Big Sight(3-11-1 Ariake, Koto-ku, Tokyo, Japan 135-0063).This exhibition is one of the most large in scale in Japan. We are going to introduce our technology and our product rainbow trout named “OKASODACHI®”.You can taste our free sample trout “Okasodachi®” at

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FRD Japan to Construct a Commercial Land-based Aquaculture Plant for Rainbow Trout in Chiba, Japan

2023年7月20日

FRD Japan Co., Ltd. (“FRD”, Representatives: Yoichi Tsuji and Tetsuro Sogo) has decided to construct a commercial land-based aquaculture plant for trout farming (“Commercial Plant”) in Chiba, Japan. With the operation of the Commercial Plant, FRD aims to produce 3,500 metric tons of trout annually starting in 2027. In addition, FRD will raise funds through a third-party allocation of new

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“Okasodachi” salmon is now available on the renewal menu of THE THOUSAND KYOTO Italian restaurant “SCALAE”! [10/1 (Friday) ~]

2021年10月6日

The new “SCALAE” will be a “restaurant that creates a lot of” WOW!” by spreading a food culture that will lead to the future,” including the sommelier team, service staff, and space. New menu with “Okasodachi” salmon “Okasodachi” salmon is used in the fish dishes offered at the lunch course in October and November.Please enjoy the taste of “Okasodachi” salmon

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9/18 (Sat)~28 (Tue), enjoy “Okasodachi” at “Sustainable Week Lunch Box”!

2021年9月22日

From Saturday, September 18th to Tuesday, September 28th, Sustainability Week “Okaimono that will lead to the future” (Afu no Wa 2030) will be held. Afu no Wa 2030 is an initiative to consider the sustainability of food and agriculture, forestry and fisheries in collaboration with the Ministry of Agriculture, Forestry and Fisheries, Consumer Affairs Agency, and Ministry of the Environment.

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