Cosmo Ferrites Ltd. reported a decrease in net revenue to ₹2,263 lakhs for Q1FY25, down from ₹2,639 lakhs in Q4FY24, primarily due to raw material quality issues, and incurred a loss of ₹169 lakhs compared to a profit of ₹37 lakhs in Q1FY24; the companys new product developments for automotive applications and an ongoing anti-dumping investigation may improve future margins.