renegotiation meaning in Chinese

重新谈判
重新议价
重议价

Fees for appeal shall be subject to renegotiation between law firm and client
上诉费用应由律师事务所与委托人重新商定。
On the other hand , stock trading also points to the renegotiation between the shareholders and the manager besides the course in which the competition mechanism plays
股票交易是股东与经理人的再谈判过程，也是竞争机制发挥作用的过程，形成公司外部治理结构。