The terms of the agreement were binding and enforceable.
Moerua offered two defences to MTL's claim that he breached the confidentiality of their settlement agreement.
First, he suggested that his privacy had been breached by people looking at, and copying his Facebook post.
Second, he claimed the employer referred to in the post was another company that he had worked for after his employment with MTL had ended, and not MTL itself.
However, the ERA dismissed both defences, ruling that by posting the message on Facebook, it was akin to a person talking in a public place or venue and being overheard.
The ERA also ruled that Moerua was unable to provide enough evidence that his post was not about MTL.
Moerua was also ordered to remove parts of the post by Monday April 23.
At the time of the decision, the post had received eight likes and 15 comments.
The Herald has contacted Moerua and MTL for comment.