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Mazda signs agreement to build plant for cylindrical lithium-ion battery module packs

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Mazda

22 May 2026

Electric & Hybrid
Original press release and more images on the Mazda media site →
Mazda signs agreement to build plant for cylindrical lithium-ion battery module packs
From Mazda’s original release. Editorial use only, under Mazda’s terms. Copyright Mazda or its photographers — Auto Press Hub grants no rights.
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Hiroshima / Leverkusen, 04/09/2025
  • Plant operations are scheduled to begin in 2027.
  • The facility is expected to reach an annual capacity of 10 GWh and will play a key role in expanding Mazda’s range of electrified products.

The Mazda Motor Corporation today signed an agreement with Iwakuni City and the Yamaguchi Prefecture to build the "Mazda Motor Corporation Iwakuni Plant," a new facility for producing module packs using cylindrical lithium-ion battery cells supplied by Panasonic Energy Co., Ltd. Construction of the plant will begin in November, with operations scheduled to start in 2027. The Iwakuni Plant will be Mazda's first new domestic facility since the Hofu No.2 Plant began operations in 1992.

Mazda is promoting electrification through its multi-solution approach, designed to flexibly address diverse customer needs. The Iwakuni Plant will be a key foundation for this global strategy, while also providing a safe, secure, and comfortable workplace and contributing to local employment and economic development.

The construction of the new facility marks an important milestone in Mazda’s transition, with its high-quality battery technology powering future electrified products and enabling the company to deliver attractive mobility solutions that meet increasingly stringent global emissions standards.

<New Plant Overview>

Name

Mazda Motor Corporation Iwakuni Plant

Product

Cylindrical Lithium-Ion Battery Packs for Automotive Use

Production Capacity

Annual capacity of 10 GWh at maximum

Location

3915 Minamishirazaki, Tsuzu, Iwakuni City, Yamaguchi Prefecture

Land Area

Approximately 190,000 m²

Construction Start

November 2025

Start of operations

In Fiscal Year 2027

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Originally published by Mazda
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Battery Technology

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