Thai Union Frozen Products has rolled out an ambitious growth plan of hitting US$8bn in sales by 2020. The seafood group has embarked on what appears to be an acquisition spree - adding Norway-based King Oscar and French firm MerAlliance brands to its portfolio. It has also been linked with canned tuna supplier Bumble Bee Foods in the US. But with analysts concerned the two European buys are "insignificant" and Bumble Bee too risky, are these the right companies for TUF?