IRNA - German Ambassador to Iran Michael Klor-Berchtold on Thursday stressed full implementation of the Joint Comprehensive Plan of Action (JCPOA). Klor-Berchtold made the remarks in the inauguration ceremony of a solar power plant in the southeastern province of Kerman. The German envoy said, 'Full implementation of the JCPOA will build up trust and help promotion of German companies' activities in Iran.' After the implementation of nuclear deal, German companies have not only transferred knowledge and technology but also conveyed the knowhow of their machineries to Iran, he added. The German envoy called for deepening mutual ties between the two countries and said, 'German export to Iran experienced 50 percent growth and machineries are main parts of the exported commodities.'