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AMG NOUVEAU MONDE GRAPHITE Exhibit 99.1 PRESS RELEASE For immediate release NMG provides Q2 2026 update and highlights a defining quarter shifting from development to execution of its Matawinie Mine Highlights Finalization of agreements and establishment of a strategic supply and marketing framework with the Government of Canada translating into a long - term take - or - pay agreements covering 30ktpy of flake graphite to be produced at the Matawinie mine . The marketing structure allows NMG to market the Government of Canada's committed volumes with an upside - sharing mechanism on proceeds above a fixed price , and the ability for Canada to store product . On May 15 , 2026 , the Company completed for the Phase 2 Matawinie Mine a private placement with strategic investors for aggregate gross proceeds of C $ 295 million ( US $ 213M ) . In addition , aggregate gross proceeds of C $ 132 million ( US $ 97M ) from the Company's subscription receipts issued on April 16 , 2026 , were released upon satisfaction of the applicable escrow release conditions . These transactions formed part of an aggregate equity financing package of C $ 427 million ( US $ 310M ) . The participation of Eni S.p.A. , NMG's new strategic investor , in the private placement was complemented by a letter of intent to advance commercial discussions toward a potential 15ktpy graphite concentrate offtake from the Phase 2 Matawinie Mine or equivalent in active anode material . Following this successful private placement and the previously announced debt financing commitment of US $ 335 million , NMG confirmed the FID for the Phase 2 Matawinie Mine and officially launched construction . The Company recently completed a Class 3 AACE cost estimate for the development of the 13ktpy Bécancour Battery Material Plant , with an estimated CAPEX of C $ 374 million ( US $ 267M ) . In addition , it is pursuing the advancement of engineering and accelerating due diligence processes of its various stakeholders in support of a targeted FID in H2 2026 . Twelve - month rolling Total Recordable Injury Frequency Rate ( TRIFR ) of 0.95 for the Company's employees and 0 for the contractors active at the Matawinie mine construction site and no major environmental incidents as of June 30 , 2026 . Looking ahead , NMG remains focused on the next phase of execution across its integrated business model which includes , amongst others , pursuing the civil works at the Matawinie site , continuing to advance the conditions required to support a targeted FID for its 13ktpy Bécancour Battery Material Plant and pursuing ongoing business development . Period - end cash position of C $ 461 million .