In a surprising outcome, Taiwanese GlobalWafers purchase of German Siltronic has failed, due to the German Ministry for Economic Affairs having failed to approve the deal. The €4.35 billion deal had been approved by all other regulators globally, but the German Ministry for Economic Affairs claims that they didn't have enough time to go over the review process locally by the deadline that was set. It appears that they're blaming their counterparts in the PRC for having been too slow in their approval process, as the Germans wanted to go over the Chinese approval, before committing to their own approval.

The deal might not be dead in the water though, but it looks like GlobalWafers is going to have to make a new offer and start the entire process over again. Had the deal gone through, GlobalWafers would've become the world's second largest 300 mm silicon wafer producer, behind Japanese Shin-Etsu, overtaking Sumco, which is also based out of Japan. GlobalWafers already owns a majority stake in Siltronic, but the question now is if GlobalWafers will maintain that share, or look to invest elsewhere. One option on the table for GlobalWafers is apparently the US, but at the same time, the majority shareholder of Siltronic wants to sell, ideally to GlobalWafers. Although it's only speculation at this point, it has been suggested that the German government wanted to retain Siltronic as a local company, especially due to growing interest by the EU to expand foundry type businesses in Europe. GlobalWafers is said to make an announcement by the end of this week as to whether they will continue with the Siltronic purchase or not.