Washington State Investment Board chooses three firms to manage WSIB’s active international developed markets core equity mandate (January 15, 2004) Olympia - The Washington State Investment Board (WSIB) today voted to pursue contract negotiations with Arrowstreet Capital, L.P, Capital Guardian Trust Company, and Fidelity Management Trust Company as new core managers for the WSIB’s Active International Equity Developed Markets Program. Subject to continuing due diligence and successful negotiation of acceptable terms and conditions, these firms will manage up to $1.5 billion in core international equity investments for the WSIB. In July, 2003, the Board approved a plan to restructure and strengthen its International Public Equity Program, shifting to a higher percent of active management to capture investment opportunities that could result in better returns as the economy improves. Today’s decision is a major component of completing that change.