DSM, in an interview with colleague Will Beacham, said that it will decide within 3-6 months if it will invest in a commercial scale biosuccinic acid plant. If that will be the case, the plant would most likely be located in the US, Brazil or China - places with advanced agricultural capabilities and good existing biorefinery infrastructure.
Here is a video interview of Volkert Claassen, DSM's vice president white biotechnology. An article (it's free!) about the interview also just came out today at ICIS Chemical Business.