negotiating committee member; negotiator on a committee
Refers to a person who is a member of a committee tasked with negotiations, such as in labor disputes, business deals, or diplomatic talks.
The labor union's negotiating committee members discussed with the company side.
He was chosen as a negotiating committee member for the new contract.
交渉人 is a more general term for a negotiator, not necessarily a committee member. 交渉委員 specifically implies membership in a formal committee.
Compound of 交渉 (negotiation) and 委員 (committee member).