<SEC-DOCUMENT>0001193125-21-081462-index.html : 20210428 <SEC-HEADER>0001193125-21-081462.hdr.sgml : 20210428 <ACCEPTANCE-DATETIME>20210315164154 <PRIVATE-TO-PUBLIC> ACCESSION NUMBER: 0001193125-21-081462 CONFORMED SUBMISSION TYPE: CORRESP PUBLIC DOCUMENT COUNT: 2 FILED AS OF DATE: 20210315 FILER: COMPANY DATA: COMPANY CONFORMED NAME: FUEL TECH, INC. CENTRAL INDEX KEY: 0000846913 STANDARD INDUSTRIAL CLASSIFICATION: INDUSTRIAL & COMMERCIAL FANS & BLOWERS & AIR PURIFYING EQUIP [3564] IRS NUMBER: 205657551 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: CORRESP BUSINESS ADDRESS: STREET 1: 27601 BELLA VISTA PARKWAY CITY: WARRENVILLE STATE: IL ZIP: 60555 BUSINESS PHONE: 6308454431 MAIL ADDRESS: STREET 1: 27601 BELLA VISTA PARKWAY CITY: WARRENVILLE STATE: IL ZIP: 60555 FORMER COMPANY: FORMER CONFORMED NAME: FUEL TECH N V DATE OF NAME CHANGE: 19930510 </SEC-HEADER> <DOCUMENT> <TYPE>CORRESP <SEQUENCE>1 <FILENAME>filename1.htm <TEXT> Document 1 - file: filename1.htm
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