April 10 (Reuters) - China International Capital Corp (CICC), one of China's biggest investment banks, said Wu Bo has stepped down as president less than half a year after taking office.

CICC also said in a filing with the Hong Kong stock exchange on Wednesday that, effective immediately, 46-year-old Wu would no longer serve as chief financial officer or member of the management committee due to "work changes".

China's oldest investment bank said the duties of president will be undertaken by Chairman Chen Liang, who joined CICC from smaller peer China Galaxy Securities late last year, and those of CFO will be handled by management committee member and CICC veteran Xu Yicheng.

The bank has also cancelled the nomination of Wu, its de facto No. 2 executive, as a candidate for executive director of the board, without disclosing reasons.

"Wu Bo has confirmed that he has no disagreement with the board during his term of office and there is no other matter relating to his retirement that needs to be brought to the attention of the shareholders, creditors of the company or the stock exchanges," CICC said.

Wu's official biography showed he joined CICC in 2004. He has held several positions, including deputy head of the growth enterprise investment banking division - which focuses on serving China's burgeoning new-economy companies - and head of a fast-growing wealth management business.

He became CFO in September and president two months later.

Beijing-based CICC was founded in 1995 by China Construction Bank, Singapore sovereign investment fund GIC and Morgan Stanley as China's first Sino-foreign investment bank.

It has been prominent in helping many large Chinese companies notably state-owned enterprises list in Hong Kong.

The firm recorded net profit of 6.16 billion yuan ($851.36 million) on revenue of 35.45 billion yuan last year, down 19% and 5.2% year-on-year respectively, showed its annual report. ($1 = 7.2355 Chinese yuan renminbi) (Reporting by Poonam Behura in Bengaluru and Julie Zhu in Hong Kong; Editing by Sriraj Kalluvila and Christopher Cushing)