NNC has an exemplary record for the site erection of tanks in either Stainless or Carbon steel. Our scope generally includes for large vertical storage tanks with diameters in ranging from 15 to 45 meters, we have successfully built and transported 5-meter diameter tanks to site in the past, while erecting larger diameter tanks on site.

We employ the latest technologies and methodologies of erection methodology, namely:

  • Welding of tank plates on site, using Automated Girth and Vertical Welding
  • Lifting and positioning of tank plates/strakes, using the tank “Jacking Method”.


We have successfully completed the fabrication of a range of pressure vessels, from Carbon steel to Stainless steel vessels in varying wall thickness and code specifications as well several LPG Gas Spheres (2500m3 each).

Our Clients include the following:

  • Eskom
  • TSB
  • Mott McDonald
  • Glencore



NNC provides comprehensive structural steel and plate fabrication services. We have the in-house capacity and utilize CNC technology to execute our fabrication process.

We provide solutions to mining houses, hydrocarbon storage facilities, power generation plants and various process-based clients.

Included in our structural capabilities is large bore ducting and pipe racking systems.


NNC excels at complex Mechanical and plant project execution for the refining and petrochemical industries.

Very few companies offer the skills and experience required to perform these complex, critical industrial projects successfully.

Our industrial maintenance services capabilities include:
  • Installation of Pumps, Valves and Vessels
  • Installation and commissioning of Compressors, Dryer systems, Air Receivers & Reticulation piping (Screwed or welded piping)


NNC generally performs our EC&I scope with our inhouse resources, our scope generally includes for the following:

  • Installation of LV Cabling
  • Pump terminations
  • Motor Control Center installations
  • Instrumentation installations and loop tests
  • Installation of lighting
  • Installation of earthing connections


NNC have a fully functional civil team, capable of supplying backup civil resources on larger projects to assist in completing ancillary works outside if the main contractor’s civil scope.

We have typically completed the following scope of works:

  • Earthworks
  • Civil structural Bases
  • Pump bases
  • Drainage Sumps
  • Pipe Rack bases
  • Walkways & Floors
  • Bund walls
  • Storm Water systems