former company president; former CEO
Refers to a person who previously held the position of president (社長) in a company. The prefix 元 indicates 'former' or 'ex-'. Commonly used in business contexts.
He is the former president of that company.
The former president remains as an advisor.
前社長 also means 'previous president', but 元社長 is more common and neutral; 前社長 can sometimes imply the immediate predecessor.
Compound of 元 (もと, 'former') + 社長 (しゃちょう, 'company president').