Ms. Rachel Naji reports

AVALON ANNOUNCES THE RESULTS OF ITS 2025 ANNUAL AND SPECIAL MEETING OF SHAREHOLDERS

Avalon Advanced Materials Inc. has released the results of its 2025 annual and special meeting of shareholders, held in Toronto, Ont., on Feb. 27, 2025. At the meeting, all seven director nominees listed in the company's information circular dated Jan. 14, 2025, were elected as directors of the company. The detailed results of the vote are provided in the attached table.

At the meeting, shareholders also approved the reappointment of Ernst & Young LLP as the auditor of the company, and disinterested shareholders approved the issuance of common shares of the company to SCR-Sibelco NV upon conversion of the amended and restated convertible debenture dated Nov. 18, 2024, in accordance with its terms.

About Avalon Advanced Materials Inc.

Avalon Advanced Materials is an emerging Canadian manufacturing company focused on vertically integrating the Ontario lithium supply chain, by developing the Lake Superior lithium facility, Ontario's first mid-stream lithium hydroxide processing facility in Thunder Bay, Ont., a strategic link in bridging the lithium resources of Northern Ontario with the downstream EV (electric vehicle) battery manufacturing base in Southern Ontario and North America. The company, through its joint venture with SCR-Sibelco NV, is currently developing its Separation Rapids lithium deposit near Kenora, Ont., while also continuing to advance the lithium focused Snowbank and Lilypad projects. Avalon is also advancing its Nechalacho rare earths and zirconium project, located in the Northwest Territories. This deposit contains critical minerals for use in advanced technologies in the communications and defence industries among other sectors.