China XD Group also got manufacture task of eight converter transformers and two smoothing reactors and assembly task of 100% thyristor component in Three Gorges — Guangdong DC Transmission Project（±500kv，3000a，3000mw）.
As for cooperative produced 700 components of converter valve in Three Gorges-Guangdong Project, the last component of valve passed the test on June 2, 2003. So far, the 700 components needed in converter valve of Three Gorges-Guangdong Project have been completed. Manufacture of eight converter transformers and two smoothing reactors in Three Gorges-Guangdong Project was finished on July 25, 2003. The operation of project is good after it was put into operation.