Executive Team

Hikaru Tanaka
Executive Chairman

Mr. Tanaka Joined DT Graham in August 2007 as CEO and later he was appointed to the position of Executive Chairman in June 2011. Hikaru brings over 25 years of experience in investment banking and institutional brokering, primarily in senior management positions in investment banks of Japan and Hong Kong. Since Hikaru’s appointment our company has reached a number of significant milestones. Mr. Tanaka has a Bachelor of Economics from Tokyo Business School and MBA from Hiroshima University. He is a Chartered Accountant and a Master Stockbroker.

Chokichi Shizuoka
Chief Executive Officer

Mr. Shizuoka is a carbon market expert and experienced executive. At DT Graham he is responsible for the day to day management of all businesses and the general management of DT Graham teams across the network. He has over 21 years of experience in management positions within the funds management and stock broking industry of Asia. Chokichi holds a Bachelor of Science in Mathematics and a Bachelor of Commerce in Finance. He completed his MBA from Purdue University. He is a member of the Institute of Chartered Accountants of Japan and he is also a Master Stockbroker with the Asian Stockbrokers Association.

Genkichi Nakamura
Chief Financial Officer

Mr. Nakamura serves as the Chief Financial Officer (CFO) and has over 18 years of experience in many profit and non-profit institutes. Here at DT Graham, he manages all the financial administrative activities including fundraising from foundations, companies and other donors. He has a Masters of Environmental Science and Management from the Donald Bren School of Environmental Science and Management at the University of California, Santa Barbara. He also holds a Masters in Environment and Development and a B.A. in Social Anthropology, both from the London School of Economics and Political Science. He obtained his MBA from London School of Business.

Kiyoshi Tokushima

Ms. Tokushima joined DT Graham in 2005. As a director, Kiyoshi’s primary responsibilities include recruiting and evaluating offset projects, drafting and negotiating new emissions reduction purchase agreements, and overseeing the existing offset portfolio. Since joining our company, Kiyoshi has negotiated the purchase of $4.7 million of carbon offsets. She is also supporting our development and implementation of the Greenhouse Gas Offset Partnership Program. She holds a BA in Economics and Environmental Studies from Okayama University.

Ren Ito

Mr. Ito brings over 11 years of experience and has worked in sustainability and climate change solutions for many years. He also possesses a broad and practical experience in corporate governance and regulation. Here at DT Graham, Mr. Ito serves as the lead corporate policy manager and provides technical expertise for all aspects of our work with a focus on understanding and applying existing and proposed carbon trading protocols. He also provides innovative directions on new project sectors, methodologies and offset quality criteria. He has a Bachelor of Jurisprudence and Bachelor of Law degrees from the Law School of Kumamoto University and a post graduate Diploma of Corporate Administration from the University of Tokyo.

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