Notice of Application for State Air Quality Permit AQ2002MSS01, Alaska Range Resources, Port Mackenzie Antimony Ore Processing Facility

The Alaska Department of Environmental Conservation has posted a public notice announcing a preliminary decision to approve a State Air Quality Minor Permit (AQ2002MSS01) for Alaska Range Resources’ proposed antimony ore processing facility near Port Mackenzie. The permit covers operation of a rock crusher (≥5 tons/hour) with estimated annual emissions of 53.93 tons of particulate matter and 3.87 tons of hazardous air pollutants (primarily antimony). Stakeholders may submit written comments on the preliminary decision until 11:59 p.m. AK time on October 14, 2026. Comments are accepted electronically via the ADEC website or by mail/email to the designated contact. The agency will consider all input before issuing a final permit decision. • Facility: Antimony ore processing plant (rock crusher) near Port Mackenzie, Matanuska‑Susitna Borough, AK • Permit type: State Air Quality Minor Permit (AQ2002MSS01) under 18 AAC 50.502(b) • Estimated emissions: 53.93 tons PM, 3.87 tons HAP (antimony) annually • Public comment deadline: 10/14/2026 23:59 AK time • Primary comment contact: Zachary Boyden ([email protected]) • Accessibility contact: Kristin Mabry ([email protected], 1‑907‑334‑0884)