NOCOPI TECHNOLOGIES, INC. SUBSIDIARIES OF THE REGISTRANT EXHIBIT 21.1 Registrant has the following subsidiaries: Name Jurisdiction Where Organized ---- ---------------------------- Euro-Nocopi S.A. (1) France Nocopi (UK) Limited (2) Great Britain (1) Registrant holds an approximate 18% interest in Euro-Nocopi S.A. together with warrants which, if exercised, would result in Registrant owning an approximate 55% equity interest. In addition, Registrant has the power to appoint a majority of the Board of Directors of Euro-Nocopi S.A. (2) Nocopi (UK) Limited is a wholly owned subsidiary of Euro-Nocopi S.A.