Nanjing Port-Machinery Co., Ltd. was established in 1958 and relocated in 2017 from the Pukou riverbank to the new Longtan plant. It is a national high-tech enterprise under Jiangsu Port Group specializing in port machinery manufacturing, a National Manufacturing Individual Champion Enterprise, and a National Specialized, High-end and Innovation-driven "Little Giant" Enterprise. The company focuses on the design, manufacturing, installation, and maintenance of large-scale port machinery, holding the industry's highest qualifications: Class A license for port crane manufacturing and Grade I qualification for steel structure fabrication. It produces approximately 100 units of various port machinery annually, with an annual output value of 1.25 billion RMB. Its champion products — portal cranes and grab ship unloaders — rank first in sales volume in the industry.