Heron Resources Limited reported results from a metallurgical testwork program undertaken on the shallow G2 Lens at its wholly owned Woodlawn Zinc-Copper Project in New South Wales, Australia. The G2 Lens represents the first mineralisation to be accessed in the underground operation and is not currently reported within the operations Ore Reserves. Shallow G2 Lens represents the first mineralisation to be accessed in the underground mine; Three mineralisation styles identified in G2 Lens: G2 Hanging Wall (G2HW) – high grade polymetallic mineralisation with elevated precious metals; G2 Main Lens (G2 Main) – polymetallic and zinc stringer mineralization; G2 Copper (GC) – copper mineralization; Testwork on all mineralisation styles returned results exceeding Feasibility Study metallurgical recovery assumptions. G2HW returned very high precious metals in copper and lead concentrates. Further drilling scheduled to expand G2 Lens towards mine access point. The shallow position of the G2 Lens has resulted in this area becoming a focus for recent exploration activity. The first concerted phase of work in 2017 resulted in the reporting of an initial Mineral Resource for this area. The first phase of work did not close off the lens to the south (towards the mine access point) and the initial drill holes in the second phase intersected strong mineralisation in both the G2 and G2HW. While the G2 Lens is currently of limited tonnage, it represents the likely first production source for the underground operation. A metallurgical testwork program was undertaken to assess processing performance and the resulting zinc, copper and lead concentrate qualities. Diamond drill core from this area has resulted in the identification of three different mineralisation styles - polymetallic containing high grade precious metals (G2HW); polymetallic and zinc stringer (G2 Main); and copper mineralisation (GC). Drill core samples were composited to provide representative samples of the expected run-of-mine ore (with dilution included) for each of the three mineralisation types. Testwork program design started with the standard flotation reagent regime used in the Feasibility Study (FS) and involved further optimisation tests. The testwork was carried out at AMML laboratories in Gosford, NSW (AMML). AMML have provided metallurgical services for Heron since the Company’s involvement in the project, and have considerable experience with flotation of mineral concentrates.