From the transcript:

We ended the quarter just shy of $200 million. The working capital decrease of $27 million, which will reverse in Q2, accounted for about half of that use of cash. We also had increased CapEx at both Gib and Florence, and $11 million was used for the purchase of copper put options to protect our Florence price in the second half of this year. We also paid our debt service, including interest. That was around $10 million.