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ASX / MEDIA ANNOUNCEMENT Pilbara Minerals Powering a sustainable energy future Thursday , 28 October 2021 SEPTEMBER 2021 QUARTERLY ACTIVITIES REPORT Strong operational performance delivers record operating cashflow ; Exceptional BMX Auction results provide increased exposure to surging lithium prices . Access the quarterly investor , analyst and media webcast here at 12.00pm ( WST ) / 3.00pm ( AEST ) on Thursday 28 October 2021 : https://webcast.boardroom.media/pilbara-minerals-limited/20210729/NaN616d253f839312001c56f7eb KEY POINTS Production and sales • • Record production of 85,759 dry metric tonnes ( dmt ) of spodumene concentrate ( June Quarter : 77,162 dmt ) , up 11 % quarter - on - quarter . Spodumene concentrate shipments of 91,549 dmt ( June Quarter : 95,972 dmt ) , exceeding guidance of 77,000-90,000 dmt . • Tantalite concentrate sales totalled 36,876lbs ( June Quarter : 39,234 lbs ) . Project development • • Commissioning of the Pilgan processing plant Improvement Projects commenced , with first concentrate production achieved through the new filter press subsequent to quarter - end ( Refer ASX release dated 13 October 2021 ) . Commenced commissioning of the coarse production circuit , with first spodumene concentrate produced from the Ngungaju processing plant subsequent to quarter end ( Refer ASX release dated 13 October 2021 ) . Earthworks progressed for the construction of a 6MW solar farm for the Pilgangoora Project with a Power Purchase Agreement signed with Contract Power Australia subsequent to quarter end ( Refer ASX release dated 20 October 2021 ) . Exploration , Mineral Resources and Ore Reserves • Discovery of new pegmatite domains , together with integration of the Ngungaju Operation , underpinned an increase in the project - wide JORC Reserve and Resource base including . 39 % increase in total Mineral Resource to 308.9Mt grading 1.14 % Li₂O , 105ppm Ta205 and 0.59 % Fe2O3 , containing 3.5Mt of Li₂O and 71.7Mlb of Ta₂O5 . ( Refer ASX release dated 6 September 2021 ) . 54 % increase in total Proved and Probable Ore Reserve to 162Mt grading 1.2 % Li₂O , 100ppm Ta2O5 and 1.0 % Fe2O3 , containing 1.9Mt of Li₂O and 36Mlb of Ta2O5 . ( Refer ASX release dated 6 October 2021 ) . p . 1