Tokyo-based Nomura Holdings has made a raft of new management appointments amid organisational changes aimed at ensuring closer collaborations across the firm’s global business platform and support functions, while also enhancing its risk management.

The following changes are effective from 1 April 2010, subject to regulatory approval.

Hiromasa Yamazaki, the current global markets deputy chief executive, will be promoted to CEO to oversee the division’s operations, which include global equities, global fixed income and asset finance.

Akira Maruyama, the current global markets CEO, will become deputy president of Nomura Securities, assuming responsibilities for the public sector. He is also to be president and CEO of the Nomura Institute of Capital Markets Research.

Naoki Matsuba, head of global equities, is to take over as the new CEO for the Americas to further drive Nomura’s build out in the US. Subject to local internal and regulatory approvals, he will be appointed president and CEO of Nomura Holding America and chairman and CEO of Nomura Securities International, the firm said in a statement.

In addition to these new duties, which include responsibility for enhancing Nomura’s business support functions in the Americas, Mr Matsuba will continue to manage Nomura’s Global Equities business as co-head of global equities.

Rachid Bouzouba, who Nomura said has been instrumental in building up Nomura’s equities business in Europe and the Middle East as head of equities, EMEA, will be appointed co-head of global equities.

In other appointments, Yasuaki Ogiwara is to become president and CEO of Nomura Italia and Albert Weng has been named head of the Taipei branch of Nomura International (Hong Kong). Masahiro Goto, meanwhile, will move to London from Tokyo to take up the position of co-head of Investment Banking, EMEA.

Nomura additionally announced the creation of a group risk management planning department which will develop and implement risk management processes, along with a government affairs and risk advisory group to be overseen by Shigesuke Kashiwagi, currently CEO for the Americas.

In business support, Hiroshi Tanaka, currently group compliance head and chief information officer, will be appointed group chief administrative officer. Working closely with the CAOs in each region, he will oversee Nomura’s IT, operations, and compliance functions and is charged with further developing the firm’s efforts to create a global platform for its business support functions.