Constellation Energy Group Inc. has named John R. Collins CFO of the $19.3 billion electricity provider, which is based in Baltimore. Collins, who is currently senior vice president and chief risk officer, succeeds E. Follin Smith, who stepped down to spent more time with her family. Smith will serve as a consultant to ensure a smooth transition. Collins joined Constellation in 1988, and in 1997, he was named CFO of Constellation Commodities Group, a subsidiary. Collins was named executive vice president and chief risk officer in 2002 and two years later, became senior vice president.

ITT Corp. the $7.8 billion advanced technology products supplier, with headquarters in White Plains, has appointed Denise L. Ramos CFO. Ramos, 50, succeeds George E. Minnich who has announced his retirement. Most recently Ramos served as CFO of Furniture Brands International from February 2005. Previously, she spent five years as senior vice president and corporate treasurer of Yum! Brands Inc. as well as CFO of KFC Corp. Earlier, Ramos served for 21 years at Atlantic Richfield Co. (ARCO) in various finance positions.

Lenovo Group Ltd. appointed Wong Wai Ming CFO of the $13.3 billion personal computer maker, which is based in Hong Kong. Ming, 49, succeeds Mary Ma who has retired and will take on the new role of Non-Executive Chairman. Ming most recently served on Lenovo's Board of Directors and as chairman of the audit committee. Prior to joining the company, Ming spent 15 years in investment banking in various senior positions.