Group 1: Analyst Ratings and Price Targets - Arun Viswanathan of RBC Capital maintains a Sector Perform rating on Celanese Corporation (NYSE:CE) and adjusts the target price from $43 to $48, indicating an upside of 8.5% [1][2] - Citi analyst Patrick Cunningham reiterates a Buy rating for Celanese Corporation (NYSE:CE) and revises the price target from $56 to $63, suggesting an upside of more than 42% [3] Group 2: Company Performance and Challenges - Celanese Corporation (NYSE:CE) experienced lower production utilization in its TiO2 segment during Q4, leading to a $25 million incremental charge [2] - The company is involved in the production and sale of polymers globally, operating through two segments: Engineered Materials and Acetyl Chain [4]