Press Information

Tamachi Building Co. Hosts Potato Dig by Local Nursery School Children at Company's Rooftop Garden
--CSR Activity Provides an Enjoyable Opportunity to Learn about Growing Healthy Food and Safeguarding the Environment--


Since 2009 Tamachi Building Co., Ltd., a Group company of Mitsubishi Heavy Industries, Ltd. (MHI), has invited children attending nearby nursery schools to vegetable harvesting events at the rooftop garden of a company-owned building in Minato-ku, in central Tokyo. The event, held twice a year in early summer and autumn, has two aims: to provide the youngsters an enjoyable opportunity outside the classroom to learn about growing healthy food and safeguarding the environment, and to promote exchanges between employees and people from the local community. The latest event in this program, the fourteenth to date, took place on July 5.

The venue for the event was the roof of the Dai Ichi Tamachi Building, which is situated directly across from East Japan Railway's Tamachi Station in Minato-ku. The rooftop of the main building is home to a garden 219 square meters in area, of which 21.5 square meters is used as a vegetable garden. The invitees on this occasion were 23 children aged 3 to 5 attending the local Petit Nursery Tamachi. In late March the children had planted potatoes here, and after some three months the potato crop was ready for harvesting. The children first received explanations from the Tamachi Building employee in charge about how potatoes grow and how to correctly dig them out of the ground. Then, with assistance from their teachers and Tamachi Building employees, the children excitedly began harvesting, punctuated by squeals of delight at their achievement and also at the various insects encountered in the process. All in all, the occasion provided an enjoyable time atop this tall building that the children see every day.

Tamachi Building was established in 1964 as a wholly owned MHI Group company. Today the company's business scope includes ownership and operation of rental office properties, operation and management of MHI buildings, and related businesses. In line with its business philosophy pledging the provision of safe and comfortable office spaces, and in reflection of MHI's CSR Action Guidelines and environment policies, Tamachi Building undertakes a variety of proactive initiatives to protect the natural environment and support education. Going forward, the company will continue this agenda of environmental and local contributions as a way of promoting CSR activities.

Related news item:
Having fun digging up potatoes
The 23 young participants from Petit Nursery Tamachi

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