 Plymouth, Massachusetts--Newsfile Corp. - July 13, 2021 - Plymouth Rock Technologies Inc. CSE: PRT OTCQB: PLRTF FSE: 4XA WKN A2N8RH Plymouth Rock, PRT, or the Company, a leader in developing detection apparatus and unmanned technologies, is pleased to announce a contract for the sale and delivery of Unmanned Aircraft Systems UAS to the Durrell Wildlife Conservation Trust Durrell to perform critical environmental operations in Madagascar.At the beginning of 2019, a team of conservationists from Durrell,... 