The Nexen Heroes will post first baseman Byung-ho Park on Monday, according to Yonhap News Agency (via MLBTR). This news isn't a surprise, as Park was expected to be posted this off-season after the huge success that Jung-ho Kang had with the Pirates in 2015.
The Pirates were linked to Park back in August, with two high level front office members scouting him. Technically they could have been scouting anyone, including a few other players who are expected to be posted this off-season (they've also been linked to a Korean closer), but their aggressiveness last off-season with Kang suggests they'd be looking at everyone, Park included.