Teck Resources, a prominent Canadian mining company, experienced a decline in its shares as it raised the cost forecast for its flagship copper mine in Chile due to construction delays. Additionally, the company reported weaker-than-expected earnings for the latest quarter. Share Performance During morning trading, Teck Resources' shares were down by 5.4% at C$50.35 in Toronto, … [Read more...] about Teck Resources Faces Challenges as Cost Forecast Rises for Copper Mine in Chile