Press Information

Tamachi Building Restaurant Offers Freshly Picked Vegetables
Grown Organically on Site Using Solar Power


Tokyo, April 5, 2012 - A restaurant in a Tokyo office building owned by Tamachi Building Co., Ltd., a subsidiary of Mitsubishi Heavy Industries, Ltd. (MHI), is offering a new menu featuring freshly picked organic vegetables grown at the restaurant. The vegetables are cultivated without pesticides or other agricultural chemicals in solar-powered "vegetable mini-factories." The endeavor, which is just one of the MHI group's many corporate social responsibility (CSR) activities, aims to contribute to the environment and the wellbeing of the community. The mini- factory units make possible on-site cultivation and consumption of safe and healthful fresh vegetables. Tamachi Building is promoting the use of similar systems by other tenants in the rental office buildings it owns and manages.

The restaurant serving freshly picked vegetables is located on the B1 level of the company's Daiichi Tamachi Building located in front of JR Tamachi station in central Tokyo. The facility is operated by NewTokyo Restaurant Co., Ltd., a major Tokyo-based restaurant chain, and serves lunch and dinner. The freshly picked vegetables appear mainly in such dinner items as salads, lettuce-wrapped shumai dumplings, and baby greens and prosciutto pizza.

Two vegetable mini-factory units have been installed at the restaurant. Each day about 60 heads of leaf lettuce (roughly 6 kg) can be harvested, along with about 1,500 heads (2 kg) of baby greens. The vegetable-growing systems are powered by electricity from an MHI solar generation system installed on the roof of the building last year. This system can generate about 4 kWh, which is equal to the electricity consumption of an average household.

Tamachi Building installed the vegetable mini-factories in January. Working in tandem, the company and NewTokyo Restaurant carried out test plantings until a stable yield was achieved and developed new menu items that would showcase the freshly picked vegetables. At the same time, tasting sessions were held so that restaurant patrons could compare the flavor of vegetables harvested at the restaurant with that of vegetables grown outdoors. The two companies also tested the drawing power of a healthful menu featuring freshly picked vegetables and launched a PR campaign.

Tamachi Building is a wholly owned subsidiary of MHI that was established in 1964 to own and operate rental office buildings, manage MHI's own buildings and provide related services. Reflecting a business philosophy that aims at providing safe and pleasant buildings, the company undertakes activities relating to education and the environment in line with MHI's CSR and environmental policies. Through these activities, the company contributes to a better environment and to the community and raises the CSR awareness of its employees.

[Vegetable mini-factories]

[Image of cultivation 1]

[Image of cultivation 2]



Business contact:Tamachi Building Co., Ltd., (Japanese site)

About MHI Group

Mitsubishi Heavy Industries (MHI) Group is one of the world’s leading industrial groups, spanning energy, smart infrastructure, industrial machinery, aerospace and defense. MHI Group combines cutting-edge technology with deep experience to deliver innovative, integrated solutions that help to realize a carbon neutral world, improve the quality of life and ensure a safer world. For more information, please visit or follow our insights and stories on