Pfizer Inc. (PFE)’s joint venture with Zhejiang Hisun Pharmaceutical Co. (600267) plans to hire 600 people in China by the end of the year, its chief executive officer said. Hisun-Pfizer Pharmaceuticals Co., is seeking staff in manufacturing, research and development, commercial and support functions such as finance, CEO Kevin Xiao said in a phone interview today. Hisun-Pfizer aims to have about 1,000 employees in the world’s most populous nation by December, and around 1,500 by the end of 2013, Xiao said. “We are trying to attract appropriate people for the positions,” said Xiao, who was previously a general manager at New York-based Pfizer’s China business. “So far, in the sales force, we have more Pfizer people, but in manufacturing, it’s the other way around.”