portfolio management to it. Robeco North America sold all of its Urban Shopping Center investments in 2002, and acquired a 60% interest in Boston Partners Asset Management, a value-equity manager based in Boston. The remaining shares were acquired in 2003. Also, in 2002, Robeco Group acquired a 49% interest in Transtrend, a Rotterdam-based managed-futures trader with a track record going back to 1990. The remaining shares were acquired in 2007. Robeco Sustainable Private Equity was introduced in 2004 as the first sustainable private-equity fund of funds in the world, developed in cooperation with Rabobank. The company opened an office in Tokyo, Japan in 2005. Robeco Clean Tech Private Equity II, an investment program aimed at clean-tech private-equity funds and co-investments, was developed in cooperation with Rabobank in 2006. That year, Robeco signed the United Nations’ Principles for Responsible Investment. The company also joined the Enhanced Analytics Initiative, a group of international asset owners and asset managers who work together to encourage investment research that considers the impact of extra-financial issues on long-term company performance. Robeco acquired a 64% stake in Swiss based Sustainable Asset Management. SAM Group and Robeco Group join forces, which gives them a strong position in the market for sustainable investment. For the Belgian market, Robeco Bank Belgium is sold to Kaupthing Bank Luxembourg in 2007. Robeco opened regional offices in Hong Kong for Mainland China, Hong Kong, Taiwan and Singapore. In 2009, Roderick Munsters became CEO of the company. In 2010, Robeco implemented an integrated sustainable investment policy. In future, factors relating to the environment, society and good corporate governance will be fully taken into account in investment decisions. Robeco also introduced an exclusion policy; no investments will be made in certain companies, such as producers of controversial weapons such as cluster bombs. In 2013, Rabobank Group announced that it was looking into the "strategic options" for its subsidiary Robeco Group as part of a strategic reorientation. In February 2013, Rabobank announced the sale of Robeco Group to ORIX Corporation of Japan. ORIX acquired about 90.01% of the equity in Robeco Group from Rabobank for €1,935 million (JPY 240.2 billion). In September 2015, Munsters stepped down as CEO and was replaced by David Steyn. ORIX acquired the remaining 10% of Robeco in 2016, and introduced a new organisational structure for the company. Robeco Group became a holding entity with various asset management subsidiaries such as Boston