Costa Rica's President Laura Chinchilla attends a meeting with her Chinese counterpart Hu Jintao at the Great Hall of the People in Beijing, August 16, 2012. Negotiations over a long-awaited Costa Rican refinery upgrade, partially funded by China, are hung up over investment terms, Costa Rica's president said on Wednesday, and the project will be a major topic of talks during her visit to Beijing this week. REUTERS/Adrian Bradshaw/Pool (CHINA - Tags: POLITICS)