About Yokkaichi Plant

Kioxia’s Yokkaichi Plant is one of the world’s largest and most efficient flash memory production facilities. Through our deployment of advanced manufacturing processes utilizing AI, we continue to meet the increasing demand for memory around the world.

Connected Factory: through technology and people

Tomoharu Matsushita
Managing Executive Officer and General Manager of Yokkaichi Plant


As a good corporate citizen, we support the prosperity of local communities and the development of society.

Tomoharu Matsushita Managing Executive Officer and General Manager of Yokkaichi PlantTomoharu Matsushita Managing Executive Officer and General Manager of Yokkaichi Plant

Innovation Created in Yokkaichi

BiCS FLASH™ and other flash memories are fabricated at Yokkaichi Plant, a smart factory that incorporates a broad array of cutting-edge technologies. Big data are collected from manufacturing and test systems and analyzed using AI techniques so as to enhance productivity.

KIOXIA Yokkaichi Plant at a Glance

Site area 694,000㎡

Approx. 1.4 km from one end to the other. Kioxia’s Yokkaichi Plant is one of the world’s largest flash memory manufacturing facilities. Kioxia commenced construction of new fabrication facility (Fab7) in the spring of 2021.

Amount of data generated per day 2 billion data lines

40TB of data are collected from several thousand items of manufacturing tools and equipment every day. The data are analyzed using cutting-edge big data solutions and used to improve production efficiency.

Number of persons working Approx. 8,000

Kioxia’s Yokkaichi Plant plays an important role in Kioxia’s cutting-edge research, technology development, and in the manufacturing of flash memory and SSDs. We contribute to local economic growth and employment.

Working with the R&D division located within the same grounds, the plant is realizing the manufacture of highly-efficient, cutting-edge products.

Our aim: to be a good corporate citizen

As a good corporate citizen, the Yokkaichi Plant will continue to prioritize legal compliance, environmental protection, and social initiatives, thus fulfilling expectations concerning our corporate responsibility. We will endeavor to contribute to the development of a sustainable society. Our aim is to make the Yokkaichi Plant a factory admired and trusted by everyone.

KIOXIA’s Yokkaichi Plant conducts a range of activities aimed at contributing to society.

We have implemented various environmental measures, such as mitigating the environmental burden of our semiconductor manufacturing facilities, which are among the world’s largest, and driving awareness of the need for environmental protection.

Yokkaichi Plant is focused on tangible and intangible measures designed to protect the safety and security of employees and local communities, and the uninterrupted supply of our products. We are also committed to providing all necessary training and drills in order to ensure these measures are properly implemented.

The sustainability approach and initiatives of KIOXIA Group. (Move to Kioxia Holdings Corporation’s website.)