Premier Graphene Inc. (BIEI) makes Down Payment for the Production of a Second SEDENA Contract Having Completed Delivery on the First Government Contract, Premier Wasted No Time in Preceding with yet Another Contract with More to ComeMexico City, Mexico, July 7, 2026 – PRISM MediaWire (Press Release Service – Press Release Distribution) – Premier Graphene Inc. (OTC: BIEI) — HGI Industrial Technologies S.A.P.I. de C.V. (HGI) is pleased to announce that Premier Graphene Inc. (Premier) completed the first man ...