RABOBANK INTERNATIONAL The company has appointed Allard Voute as manager for international desks for Singapore and representative markets. Based in Singapore, Voute will focus on servicing Dutch companies that are active in Singapore, Malaysia, Thailand, Vietnam, and the Philippines. JOHN HANCOCK RETIREMENT PLAN SERVICES The financial services arm of Manulife Financial Corp appointed David Hiss as regional vice president. Hiss will be responsible for sales and relationship development with financial representatives and plan consultants in the Chicago Metro area. PUBLIC SECTOR PENSION INVESTMENT BOARD The investment manager appointed Chief Financial Officer John Valentini as interim chief executive, effective immediately. Valentini, who joined the company in 2005, is also vice president and chief operating officer.