3M increases board size to 11 with Choi

3M Co.
MMM,
+0.63%
said Friday it increased its board to eleven members with the addition of Audrey Choi. The appointment was effective as of Wednesday, the Dow Jones Industrial Average
DJIA,
+0.30%
component said. Choi spent 16 years at Morgan Stanley, where she was last chief sustainability officer and chief marketing officer before retiring.