On December 3, 2019, Nanophase Technologies Corporation approved changes in responsibilities and corresponding changes in title of certain officers. The title of Chief Financial Officer was added for Jess Jankowski, the Company's President, Chief Executive Officer, Secretary and Treasurer. This change was made to reflect Mr. Jankowski's assumption on an indefinite basis of responsibilities as the Company's principal financial officer and principal human resources officer.

In addition to his responsibilities as President, Chief Executive Officer, Secretary and Treasurer, Mr. Jankowski has served as the Company's principal financial officer on an interim basis since April 5, 2019. The Company changed the title of Kevin Cureton to Chief Operating Officer from Chief Commercial Officer. This change was made to reflect a change in reporting structure for the Company's manufacturing and engineering organizations, which will report to Mr. Cureton, who will direct the Company's operations, research & development and sales & marketing functions.