SUPPLEMENT TO PRELIMINARY LIMITED OFFERING MEMORANDUM relating to THE ESSEX COUNTY IMPROVEMENT AUTHORITY CHARTER SCHOOL REVENUE BONDS (NORTH STAR ACADEMY CHARTER SCHOOL OF NEWARK, INC. – 559 BROAD/HAZELWOOD FACILITIES 2020 PROJECT) $5,955,000* SERIES A $26,550,000* SERIES B (FEDERALLY TAXABLE) SUPPLEMENT TO PLOM POSTED 12-17-20