I. Procedural History

1. On January 25, 2008, the Acting Secretary-General of ICSID registered a Request for Arbitration submitted by Mrs. Marion Unglaube, a national of Germany, against the Republic of Costa Rica. The dispute concerns an investment in the ecotourism industry in Costa Rica through the acquisition of land for the development of a tourism project and its subsequent alleged expropriation by the Costa Rican Government. The Request was submitted on the basis of the Treaty, signed on September 13, 1994 and entered into force on March 24, 1998, between Costa Rica and Germany concerning the Encouragement and Reciprocal Protection of Investment (“the BIT” or “the Treaty”).