Paddington Gold Operations comprises of the following key deposits: Enterprise, Janet Ivy, Bullant, Homestead, Tuart and Federal.

Federal open cut and underground.
The Federal deposit is located 12 km northeast of the Paddington Mill, situated within the Golden Cities camp area.

Mineralisation is hosted by granitoid lithologies and is controlled by a northwest trending fault zone. Gold mineralisation is associated with pyritic vein quartz, with vein density the dominant control on gold grade. Several plunging high-grade lodes within the broader lower grade mineralised envelope are interpreted, and future work will review the potential to extend these lodes.

Enterprise open pit and underground.
The Enterprise deposit is hosted by units of the Enterprise dolerite sill and comprises a breccia cap with underlying quartz stock work. Eight layers have been identified within the sill and identified as Unit 1 to Unit 8 (from depth to surface).

Gold mineralisation is characterised by multiple fault orientations, with the major ore envelope controlled by the intersection of a series of steep trending faults. High-grade gold zones are concentrated in steeply plunging linear zones that coincide with these brittle- ductile faults, and large areas of relatively lower grade mineralisation fill the gaps between the faults.

Homestead Underground.
The Homestead orebody comprises several mineralised high-grade veins (VN01, VN02 and VN03), within the north trending, steep, west- dipping Homestead shear zone. A series of oblique east-west to northwest trending veins, the Phantom and small 140 veins respectively, occur immediately east of the Homestead shear zone. At the northern limit of VN01, the Homestead shear zone is cut by a northeast trending fault structure which laterally offsets the main mineralised zone some 40 m to the west of VN01, which is referred to as VN03.

Two areas have been drill tested during the period, namely depth extensions of the Black Flag West Vein and a newly defined mineralised vein now called the Henning Vein.

The Henning Lode or Vein is a new discovery located in the footwall of the northwest trending, northeast dipping Black Flag West Vein. Orientation of the new vein is interpreted to be north-south trending and steep east dipping. The Henning Vein is characterised by massive to laminated vein quartz with a pyrite/pyrrhotite/galena/sphalerite sulphide assemblage, similar to other mineralised veins in the area. The vein averages approximately 1 m to 2 m in true width based on current data. Mineralisation has been intersected over a strike extent of 50 m to 100 m, and a dip extent of up to 150 m.

Tuart Open Cut and Underground Prospect.
The Tuart Prospect is located within the Mt Pleasant mine camp area, adjacent to the currently operating Homestead underground mine and the previously mined Green Gum open cut mine.

The Tuart deposit comprises a series of high grade quartz-carbonate-sulphide brecciated or laminated veins hosted within mafic volcanics. Supergene oxide mineralisation is developed in the regolith immediately above and/or adjacent to the primary veins. Mineralisation covers a broad area located to the northwest of the Homestead underground mine, and immediately west of the historically mined Quarters open pit and underground mine.

Janet Ivy.
Janet Ivy is located 33 km south of the Paddington Mill and 10 km west of Kalgoorlie, and was an open cut mine that delivered base- load ore to the mill by a dedicated haul road between 2011 and 2013. The deposit is a broad, strike extensive zone of mineralisation contained within felsic porphyry intrusive. Mineralisation is controlled by a vein stock work zone, individual fault-controlled veins, and pervasive wall rock alteration of the porphyry. Significant mineralisation extends over a 1.3 km strike extent and to an average vertical depth of 130 m to 150 m from surface, and remains open along strike and at depth.

Bullant underground.
The Bullant Project is located 40 km west of the Paddington Mill and was acquired from KMC during 2013. The underground mine is situated along the Zuleika Shear Zone, a highly prospective regional north-northwest trending structure. The Shear Zone is a broad ductile to brittle structural corridor contained within a mafic unit in the mine area. The Shear Zone dips sub-vertically to steep east dipping. Mineralisation occurs in up to four lodes (labelled the Main, East, West and Cross lodes) and is associated with biotitesilica-pyrite altered basalt and minor local quartz veining. Both the Main and East lodes remain open at depth and in various other positions around previously mined areas.

The largest producing mines in the Paddington tenement package include the Enterprise open pit, Homestead underground and Bullant underground mines:
- Enterprise mine (Ora Banda Project) currently supplies the majority of the ore processed at the Paddington Mill and is supplemented by the small Wattlebird open pit mine, which commenced mining in mid-2014.
- Homestead underground mine (Mount Pleasant Project) includes the Black Flag West Vein which has been material in boosting mine grade and volume.
- Bullant underground mine, acquired through Norton’s takeover of KMC in April 2013.

Enterprise.
There is a conceptual Stage 4 pit, based on a higher gold price, and a conceptual underground project. The orebody is a south plunging (30° to 225°) brittle stock work in dolerite, fault bound to the north and south east-west trending faults. There is little oxide development and the mineralisation is bound at its upper surface by a very hard silicified sedimentary cap, which has impeded stripping in this area and precludes gravity-caving methods for any underground mine.

The geometry of the deposit results in extensive stripping before the orebody is intersected and an uneven ore production chedule.

The pit runs two fleets of trucks, a fleet of CAT793’s serviced by an EX3600 for waste stripping and a fleet of CAT 777’s serviced by an EX1900 for production.

Byrnecut secured a three year underground mining contract with Norton Goldfields for their new Enterprise and Tuart underground mines within the Paddington Gold camp.

Works comprise portal excavation, mine development, and longhole stoping with pastefill and cemented rockfill techniques.

Enterprise, at Ora Banda was the first mine to start, with two portals excavated for decline and ventilation access.

The Tuart mine, 20km south at Mt Pleasant commenced two months later. The operation will be managed by a single management team, with each site having its own workshop and site facilities. Development and production activities will steadily ramp through 2021.

Wattlebird.
The Wattlebird pit operation is in the Bullant area near the Bullant underground mine and shares some facilities with that operation.

The mineralisation comprises mineralised quartz veins developed in sheared pillow basalt between two ultramafic units. The mine was originally designed as a two-phase development, but a wall failure along a 40 degree dipping fracture (joint) on the haul road forced a rescheduling and redesign of Phase 2 to maintain production while recovering the Phase 1 section of the pit sterilised by the slip.

Mining is undertaken by a dry-hired fleet of CAT777 trucks serviced by an EX1600, with an anticipated move to smaller articulated trucks in the final months of the operation.

Homestead underground mine.
Homestead has historically exploited a shear system developed in basalt, mined on nominal 15 m levels using a derivative of the Avoca method and cemented waste fill. The waste filling technique is novel and involves cement being mixed at the tipping point in a loader bucket allowing rapid turnaround of stopes. The mineralisation occurs in shoots and appears to have a rheological and lithological control related to the iron content of the basalt, resulting in a “spotty dog” grade distribution.

Mine access is via a common portal, servicing a twin decline, one decline devoted to ventilation. The historically mined levels have exploited the steeply easterly dipping (85°) northern VN03 system and the southern VN01 system, the shear striking around 010°. This system is expected to continue down plunge. The Black Flag Vein occurs as a moderately dipping (65°) splay striking 100°, to the east of VN01/VN03 and Henning Lodes as a further ladder-vein developed on a shear splay to Black Flag, striking around 120°.

Bullant.
The Bullant mine was acquired from KMC in 2013 and has subsequently been extensively redeveloped by Norton. Mineralisation is developed in a biotite altered shear in basalt and is exploited to 600 m depth at 18 m to 23 m level intervals using similar methods to that at Homestead, with the variance being that Bullant utilises upholes rather than downholes.

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The Paddington Mill uses conventional crushing and grinding (open circuit SABC); cyanide leaching, CIP adsorption, Zadra elution, gravity concentration gold recovery (with a Knelson concentrator and Acacia intensive leaching reactor), electrowinning and smelting.

Fine gold not recovered by gravity is leached in an alkaline cyanide solution. The feed slurry is thickened to 50% to 52% solids in a 30 m high rate pre-leach thickener. The cyanide concentration is maintained at around 200 mg/L to 300 mg/L and the dissolved oxygen at 10 mg/L to 20 mg/L. Oxygen is produced by a 3 tonnes per day (“tpd”) pressure swing oxygen plant. The leach circuit has one leach tank with 6 hours of residence time and three carbon in leach (“CIL”) tanks with 18 hours of residence time.

After leaching and CIL, the slurry is pumped to two parallel trains of five smaller CIP tanks (360 m3 each), which are used purely for carbon adsorption. The carbon concentration in the tanks is kept at ........