The Pacific Resource Partnership, in addition to apologizing to former Gov. Ben Cayetano for a negative advertising campaign during the mayor’s race in 2012, will donate $100,000 to the University of Hawaii Medical School and $25,000 to the Hawaiian Humane Society in Cayetano’s name.

The agreement settles a defamation lawsuit that Cayetano filed against PRP shortly before his election defeat. Cayetano lost to Honolulu Mayor Kirk Caldwell.

The former governor had argued that PRP’s negative ads unfairly tarnished his reputation.

PRP is a consortium of union carpenters and private contractors. The group favored the city’s rail project, which Cayetano had vowed to block if he was elected mayor.