Exhibit 5.8

CONSENT OF JEAN-FRANÇOIS ST-LAURENT

November 25, 2025

VIA EDGAR

United States Securities and Exchange Commission

Re:	Nouveau Monde Graphite Inc. (the “Company”)
	Registration Statement on Form F-10 of the Company filed on November 25, 2025 (the “Form F-10”)

I, Jean-François St-Laurent, hereby consent to (i) the written disclosure regarding the Technical Report titled “NI 43-101 Technical Report: 2025 Feasibility Study for the Matawinie Graphite Mine, Saint-Michel-des-Saints, Québec, Canada” dated November 12, 2025 and (ii) references to the undersigned’s name (a) in connection with the preparation and review of the aforementioned scientific or technical information contained in or incorporated by reference into the short form base shelf prospectus and (b) under the caption “Interests of Experts” in the short form base shelf prospectus, in each case, included in or incorporated by reference in this Form F-10 being filed by the Company with the United States Securities and Exchange Commission, and any amendments thereto. 

/s/ Jean-François St-Laurent

Jean-François St-Laurent