Agreements on the manufacturing of the Audi 100 under license were signed on 13 August 1988, with this date marking the conclusion of negotiations lasting one year. The joint venture agreement included both the technology transfer for the production and planning of the Audi 100, and the setting up of after sales support. Expertise was in addition transferred by providing training for some 500 Chinese workers at Audi in Germany. Furthermore, around 30 Audi employees were posted to Changchun to provide production support.