<article><p class="lead">Workers at Teck Resources' Carmen de Andacollo copper mine in Chile planned to begin a strike today, after talks with the company failed to produce an agreement on 11 October.</p><p>A collective bargaining agreement between the Teck Carmen de Andacollo Workers Union and Teck Resources expired on 30 September. </p><p>The union, which represents 473 workers, entered into a five-day mediation process but had yet to come to an agreement by 11 October.</p><p>Teck expected operations to halt at the mine, excluding essential activities. Teck owns 90pc of the mine with the remaining 10pc share owned by Empresa Nacional de Minería. </p><p>The mine produced 15,300t of copper in the second quarter of 2019, 4pc lower than the year earlier period. Output fell because of a thickener failure in June.</p><p>Carmen de Andacollo produced 67,000t of copper in 2018, down from 76,000t in 2017. Revenues attributed to the mine slid to $488mn from $549mn over the same period. Teck operates three active copper mines in Chile with another planned to begin production in the second half of 2021.</p></article>
