Guangdong Changda is the earliest professional highway construction team established in Guangdong Province, and Poly Changda Engineering Co., Ltd. is a high-tech enterprise integrating engineering construction, design, maintenance and investment. 20 19 in response to the call of the national action of letting a hundred flowers blossom, the two companies merged mainly with Poly and supplemented by Guangdong. After renaming, one of the strategic goals of Poly's growth is overseas market.