ZHANG Yundong has moved back to the Shenzhen Securities and Exchange Commission after more than a year with the watchdog China Securities Regulatory Commission (CSRC). While formerly he was a Shenzhen commission director, responsible for marketing and B-share issues, he returned three weeks ago as the commission's deputy chief, a commission official said. In conjunction with another deputy chief, Liu Xinhua, Mr Zhang will take charge of the commission, which has yet to find a helmsman after director Wang Lin's departure under a bribery charge last year. Mr Zhang has been a director at the CSRC's public offerings department since early last year. While Mr Zhang's appointment to the Shenzhen commission was seen by some critics as a move by the CSRC to tighten its grip there, a commission official denied such a motive. The commission official said Mr Zhang was moving back to his former department and his return should in no way be seen as a political manoeuvre. Mr Zhang will attend a seminar in Hong Kong on Tuesday for officers of eight Shenzhen B-share companies, including Chiwan Wharf Holdings, to meet fund managers and brokers. Chiwan Wharf has just completed a roadshow in Europe for a new B-share sale. CSRC chairman Zhou Daojiong is expected to attend the seminar. Also attending the event will be the new general manager of Shenzhen stock exchange, Zhuang Xinyi, Shenzhen's vice-mayor, Wu Jiesi, and Shenzhen commission deputy chief Mr Liu. Other B-share companies that will attend the meeting are Guangdong Electric Power Development, Chiwan Petroleum Supply Base, China International Marine Containers, China Merchants Shekou Port Service, Shenzhen Konka Electronic Group, China Southern Glass and Shenzhen Special Economic Zone Real Estate and Properties (Group) Co. The seminar is to provide a regular forum for firms and investors.