Complex sentence: In 1990, Timber Hill Deutschland GmbH was incorporated in Germany, and shortly thereafter began trading equity derivatives at the Deutsche Terminborse (DTB), marking the first time that Timber Hill used one of its trading system on a fully automated exchange.
Split into simpler sentences: In 1990, Timber Hill Deutschland GmbH was incorporated in Germany, and shortly thereafter began trading equity derivatives at the Deutsche Terminborse (DTB). This was Timber Hill's first use of its trading system on a fully automated exchange.