Danish cleaning group ISS on Wednesday said it had signed a letter of intent to sell its troubled U.S unit ISS Inc to Canadian firm Aaxis Limited .
<response> <misc>Danish</misc> cleaning group <organization>ISS</organization> on Wednesday said it had signed a letter of intent to sell its troubled <location>U.S</location> unit <organization>ISS Inc</organization> to <misc>Canadian</misc> firm <organization>Aaxis Limited</organization> . </response>