THIS ADMINISTRATIVE ORDER IS ISSUED TO CITIGROUP, INC. TO COMPEL COMPLIANCE WITH AN INFORMATION REQUEST AND ACCESS TO DOCUMENTS RELATED TO THIS REQUEST. ON 3/28/2000, SHARON KERCHER SENT A LETTER TO RESPONDENT REQUEST INFORMATION RELATING THE THE DENVER RADIUM SUPERFUND SITE. TO DATE, THE RESPONDENT HAS COMPLETELY FAILED TO COMPLY WITH THE INFORMATION REQUEST. THE RESPONDENT IS ONE OF THE PARENT CORPORATIONS OF THE S.W. SHATTUCK CHEMICAL CO. THE RESPONDENT HAS KNOWLEDGE RESPECITNG ITS RELATIONSHIP TO- AND ABILITY TO PAY FOR- THE POTENTIAL CERCLA LIABILITY OF ITS SUBSIDIARY CORPORATION.