tie-up negotiations; partnership talks
Refers to formal discussions between companies or organizations aiming to form a business alliance or partnership.
The two companies are proceeding with tie-up negotiations.
The partnership talks are facing difficulties.
提携 means 'tie-up' or 'partnership' itself, while 提携交渉 specifically refers to the negotiations for such a partnership.
交渉 is a general term for 'negotiations'; 提携交渉 narrows it down to negotiations about forming an alliance.
Compound of 提携 (tie-up, partnership) and 交渉 (negotiations).