Rohm and Haas Co. has named Jim Fahey, Cathie Markham and Hua Du Vice Presidents. All three are also members of the Rohm and Haas Co. Leadership Council. Jim Fahey has been named President and Business Unit Director, Microelectronic Technologies. Cathie Markham has been appointed Vice President Technology for CMP Technologies and Chief Technology Officer (CTO), Electronic Materials. Hua Du has been named Rohm and Haas China President, CBT General Manager – Asia.