11:28 AM EDT, 10/17/2025 (MT Newswires) -- Lundin Mining ( LUNMF ) late Thursday pre-announced certain items impacting its earnings, adjusted EBITDA, adjusted earnings and adjusted earnings per share for the third quarter.

Revenue is expected to be affected by a timing difference between the production and shipment dates of about 20,000 tonnes of copper concentrate, or about 5,1100 tonnes of contained payable copper.

A shipment of copper concentrate from Caserones scheduled for September was delayed into October due to weather-related issues. The related revenue and cost of goods sold will be recorded in the fourth quarter.

Revenue is expected to be positively impacted by unaudited provisional pricing adjustments on prior-period concentrate sales of about US$11 million on a pre-tax basis. These are mostly upward adjustments related to prior-period copper and gold sales.

Unaudited realized foreign exchange gains and unaudited realized losses on derivative contracts in the third quarter are not expected to be significant.

The company also expects to recognize certain non-cash items that will impact its earnings but not adjusted EBITDA, adjusted earnings or adjusted earnings per share.

These include an unaudited unrealized loss of about $26 million on a pre-tax basis related to the mark-to-market valuation of Lundin's unexpired derivative contracts, primarily due to rising gold prices during the quarter.

Lundin will release its third-quarter operations and financial results after market close Nov. 5. The company will hold a webcast and conference call Nov. 6 to present the results.

Lundin's share price at last look lost 3% to $20.97 on the Toronto Stock Exchange in early Friday trading.

Price: 20.90, Change: -0.71, Percent Change: -3.29