CHEONGJU-SI, Korea, Republic Of (AP) — CHEONGJU-SI, Korea, Republic Of (AP) — Magnachip Semiconductor Corp. (MX) on Wednesday reported a loss of $12.5 million in its third quarter. The Cheongju-Si, Korea, Republic Of-based company said it had a loss of 34 cents per share. Losses, adjusted for one-time gains and costs, were 29 cents per...