There are synergies 2b had, in the distribution as you mention and the packaging as all555 commented. Then there is the ability of the company to use its NOLC to shield the earnings from taxes. Hopefully, IF (big if) MLNK is looking at a takeover here, they've done a lot more DD than we have and think it's a good fit.
If this is merely an opportunistic buy on their part, they could book a nice profit if they can sell at today's price or higher. My feeling is that there is more to it than this, but we'll have to wait to see how it plays out.