Special telephone calls are a subsidiary of the triede, which is mainly involved in three main areas: electricity equipment manufacturing, auto-charging ecological networks and new energy micronets, with 10 major research and development centres and over 1,000 proprietary technologies worldwide. The project aims to create china's largest vehicle-charging ecological network, providing easy and efficient charging services to users of electric vehicles through the layout of “coin-free charge” and innovative charging technologies. Development history: in 2014, triede intends to invest $600 million in the project to expand car charging, to establish a special call company and to initiate an electric car cluster control technology route and a “modular structure” for the charge network. In 2015, the electricity electronics research and development centre was established in xi'an to launch the cms active protective, soft charged smart system. In 2016, the big data ec...