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About Us

Corporate Information

Mita Kosan Co., Ltd.
Ichigo Mita Building 9F, 5-13-18, Shiba, Minato-ku, Tokyo, 108-0014
RepresentativePresident
Masamichi Idemitsu
EstablishedJanuary 15, 2021
Capital Stock100 million yen(JPY)
BusinessReal estate leasing
Business ActivitiesReal estate acquisition, development, leasing, and management

Access

Ichigo Mita Building 9F,
5-13-18, Shiba, Minato-ku, Tokyo
108-0014
TEL +81-3-6275-1772
FAX +81-3-6275-1773

History

January 15, 2021: Mita Asset Management Co., Ltd. is established with a five-million-yen capital and Mr. Masamichi Idemitsu is appointed President and Representative Director
February 2021: Head office moved to Freund MITA 804, 14-5 Mita 2-chome, Minato-ku, Tokyo, Japan. Increased capital to 100 million yen
March 2021: Registered trade name changed to Mita Kosan Co., Ltd. and head office moved address to Freund MITA 606, 14-5 Mita 2-chome, Minato-ku, Tokyo
October 2021: Deetex Shokai K.K. became a group company (currently Idemitsu Shokai Co., Ltd.)
October 2021: Powerlink Co., Ltd. became a group company
March 2022: Purchased NS Mita Building (now MA Building Mita Tsunamachi) Embassy Building
April 2022: Head office moved to 9F Ichigo Mita Building, 5-13-18 Shiba, Minato-ku, Tokyo
August 2022: Signed sponsorship agreement with professional tennis player Naoki Tajima
Oct. 2022: Purchased Mitsuwa Mita Building (now MA Building Mita II) office building
November 2022: Signed sponsorship agreement with professional tennis player Naho Sato
March 2023: MA Building Mita Nichome newly completed [Design Company: APA Associates, Construction Company: Koukensha Co.]
April 2023: MA Building Shiba newly completed [Design Company: Okada Sogo Keikaku, Construction Company: Hyuga Kouhatsu Corporation]
September 2023: Dedication ceremony and party for MA Building Mita (at Okura Tokyo, Heian Room)
November 2023: MA Building Mita newly completed [Design/Construction Company: Takamatsu Construction Co.]
February 2024: Japan Dates Enterprise Co., Ltd. became a group company (currently Idemitsu Shokai Co., Ltd.)
June 2024: MA Building Shiba II newly completed [Design Company: Okada Sogo Keikaku, Construction Company: Watanabe Construction Co.]
August 2024: Office expanded to additional floors (second floor of Ichigo Mita Building) due to business growth
September 1, 2024: Idemitsu Shokai Co., Ltd. established
December 1, 2025: Idemitsu Shokai Holdings Co., Ltd. established

Group Companies

Idemitsu Shokai Co., Ltd.
Ichigo Mita Building 9F, 5-13-18, Shiba, Minato-ku, Tokyo, 108-0014
RepresentativePresident
Masamichi Idemitsu
EstablishedSeptember 1, 2024
Capital Stock100 million yen(JPY)
Business DescriptionTrading business
Business Activities
  • - Processing of agricultural products, buying and sales of processed foods, and import/export business
  • - Sales and import/export of food and beverage products
  • - Sales and import/export of textile machinery parts
  • - Sales and import/export of tools and their parts,for automobiles and machine tools
  • - Sales and import/export of chemicals and additives necessary for the chemical fiber manufacturing
Websitehttps://www.idemitsu-shokai.com/
Powerlink Co., Ltd.
Ichigo Mita Building 9F, 5-13-18, Shiba, Minato-ku, Tokyo, 108-0014
RepresentativePresident and Representative Director
Yoshiyuki Tomuro
EstablishedOctober 1, 2002
Capital Stock100 million yen(JPY)
Business DescriptionActivities related to life insurance solicitation; general (non-life) insurance agency services
Business Activities
  • - Comprehensive insurance consulting (corporate and individual)
  • - 21 life insurance companies
  • - 10 general (non-life) insurance companies
  • - 9 consultants
Websitehttps://www.powerlink21.com/