Millennium Minerals announced that gold production from sulphide ore has commenced at the Nullagine Gold Project in Western Australia following the successful commissioning of the Stage 1 sulphide plant expansion. The delivery of first gold from sulphide ore represents a major milestone for the Company, marking the culmination of detailed development studies and optimisation programs completed over the past four years. The ability to cost-effectively process sulphide ore also represents a key element of the Company's longer-term growth and development strategy, opening up a large portion of the Nullagine Reserve base as well as delivering a range of new, high-grade exploration targets. The Ultra-fine Grind (UFG) Mills were commissioned over 19-24 June, with gold now being recovered from sulphide concentrate. Concentrate stockpiles currently total approximately 1,200 tonnes, with the concentrator spirals delivering positive performance over the six weeks since commissioning, and expected throughput rates being maintained. Concentrate grades remain in line with expectations for the ore types and grade being processed since commissioning. The upgrade ratio will vary depending on the grade and sulphide content of the material being fed to the concentrator plant. The circuit has been commissioned using lower grade /lower sulphide ore, however it has demonstrated sufficient capacity to accommodate the increased sulphide content and higher concentrate volumes expected once processing of higher grade ore commences. To date, while processing lower grade /lower sulphide content ore, the circuit has delivered concentrate generation rates averaging approximately 3% of the feed mass. Concentrates produced to date have an average grade of approximately 3g/t Au. Stockpiled concentrates, together with freshly generated concentrates, will now be fed back into the UFG Mill circuit for final gold recovery. With the expected concentrate generation rate going forward and the installed mill capacity, it is expected that the stockpiled concentrates will be processed over a 4-6 week period. Optimisation of the sulphide circuit is continuing, with test work underway on fresh concentrates generated in the plant. For pyrite-rich concentrates, test work is focused on the potential to increase grind size from the designed 10 micron to closer to the 20-30 micron range. This reduction in grind requirements would reduce operating costs and enhance cash flow for Stage 1 of the sulphide plant operations, by allowing an increase in UFG mill throughput and a reduction in power costs, media consumption and wear, with minimal adverse impact on gold recoveries. A further update on gold recoveries and production metrics will be provided in the Company's June 2019 Quarterly Activities Report, which is scheduled for release in late July. Millennium Chief Executive Peter Cash said all early results from the sulphide circuit had been very positive, indicating the potential to generate strong, profitable gold production from sulphide ore. Over the remainder of 2019, approximately 50% of Millennium's ore feed will come from sulphide sources. The sulphide expansion project is broken into three distinct phases: Stage 1a: Concentrator and fine grinding circuit (now in operation). Stage 1b: Installation of the in-mill oxidation (INOX) process as the concentrate transitions from a pyrite-dominant to a blended pyrite /arsenopyrite ore. Stage 2: Pressurised in-mill oxidation (PINOX) to facilitate processing of arsenopyrite- dominant ore. Completion of the Stage 1b and Stage 2 upgrades will be timed to maximise cash flow based on the mine schedule.