LEWISTON — Central Maine Federal Credit Union announces the promotion of Trina Mercier to assistant vice president operations.

Mercier started as a teller with the credit union in 1996 and has held the positions of accounting clerk, computer operator and operations specialist. She is also the credit union’s human resource person.

Mercier participates in numerous credit union-sponsored events and is a member of Central Maine Credit Union’s Book Buddies — a group of employees who read to children at Martel School.

Central Maine Federal Credit Union, a full-service financial institution serving all of Androscoggin County, is located at 1000 Lisbon St.