Goldman Sachs has broadened its coverage of regional stocks, bringing three senior analysts to the firm as executive directors. With immediate effect, Helen Zhu, Jim Hung and Kenneth Whee will join Goldman and be based in Hong Kong, Taipei and Seoul respectively.

Zhu arrives at the investment bankÆs Hong Kong offices as regional head of telecommunications research. She will take on the role from Jason Billings, who although still with Goldman, is planning to retire in the near term.

Zhu shifts to the Goldman position from ABN AMRO in Hong Kong, where she held a similar position. For her new employers, Zhu will report to Paul Bernard, GoldmanÆs co-director of pan-Asian research.

In GoldmanÆs Taipei offices, Hung will become head of Taiwan non-tech research. He will focus his attention on large and small cap industrial and consumer stocks and comes as the firm says it is looking to broaden its coverage in this market. He reports to Henry King, the investment bankÆs head of Taiwan research and comes on board after the departure of Shumin Huang, who covered the energy sector from Hong Kong.

Hung jumps ship from Credit Suisse in Taipei, where he covered petrochemicals stocks and other non-tech companies.

The third appointment - Whee will be based in Seoul as regional head of chemicals research. In this new role, he will work closely with Hung and also Kelvin Koh, an energy analyst at GoldmanÆs Hong Kong offices.

Whee will report to Terence Lim, GoldmanÆs head of Korean research. He comes from Morgan Stanley in Seoul and brings over 10 years of equity research experience to Goldman. Most recently, he held the title of Korean energy and chemicals analyst.