Adriatic Metals PLC announced that it has received the metallurgical test work results from the latest multistage Locked Cycle Test (LCT1) carried out at the laboratories of Wardell Armstrong International ("WAI") under the guidance of Adriatic's metallurgical consultant. Following the completion of the successful preliminary metallurgical test work in September 2019, Adriatic engaged WAI to initiate a second program of metallurgical tests intended to 1) verify the sequential concentrate production following the successful separation of copper, and 2) confirm the metallurgical recoveries from feed with varying grade and metal assemblage. WAI undertook a metallurgical investigation on a representative sample characterising the higher-grade zones of the Rupice deposit, which were assumed to be mined first in the recent Scoping Study completed in November 2019. A detailed froth flotation study focussed on the production of separate copper, lead and zinc concentrates as well as a barite product. Variables investigated included primary grind size, reagent type, reagent dosage, pH profile and residence time. A suite of batch rougher and cleaner tests culminated in a locked cycle test and the results for LCT1 (Locked Cycle Test 1. The test work confirms that it is possible to produce a copper concentrate containing significant quantities of payable gold and silver (20.9ppm Au and 9,550ppm Ag). As a result, based on advice from company's concentrate marketing consultant, it is now expected that the copper concentrate will be in excess of 95% payable as compared to the previous assumption that the copper/lead concentrate would be only 30% payable.