Considering that: 

1. The Tribunal refers to its Procedural Orders No. 4 and 5, the purpose of which was to regulate the use of documents for witness and expert examination in order to ensure an efficient and constructive preparation and conduct of the hearing on preliminary issues, and in particular of the witness and expert examinations. 

2. Following an exceptional extension of the deadline for submission of the list of documents to be used for witness and expert examination, Respondent submitted on 5 April 2010 an additional list of 80 documents (among the documents submitted on 3 June 2009), representing over 3,000 pages. 

3. On the same day, by letter of April 5, 2010, Claimants raised several objections to the documents listed on Respondent’s list.