| 2410902 | Steel & Alloy Products Cutting | Casting of steel and iron | Professional | |
| 2420002 | Aluminum Smelter | Casting of steel and iron | Industrial | |
| 2420008 | Gold Refinery | Casting of steel and iron | Industrial | |
| 2420009 | Copper Rod Casting | Structural steel manufacturing | Industrial | |
| 2431001 | Cast Iron Manufacturing | Other metal indusries | Industrial | |
| 2431002 | Steel Tubes & Fittings Manufacturing | Pipes and wires manufacturing | Industrial | |
| 2431004 | Steel Pipes & Fitting Manufacturing | Pipes and wires manufacturing | Industrial | |
| 2432001 | Gold & Precious Metal Casting | Manufacture of gold and precious stones cutting | Industrial | |
| 2432002 | Non-Ferrous Metal Casting | Casting of steel and iron | Industrial | |
| 2432003 | Weighing Materials Manufacturing | Other metal indusries | Industrial | |
| 2511001 | Reinforcement Steel Bars Fabrication | Structural steel manufacturing | Professional | |
| 2511002 | Structures & Structural Steel Manufacturing | Structural steel manufacturing | Industrial | |
| 2511003 | Steel Hangars & Sheds Manufacturing | Structural steel manufacturing | Industrial | |
| 2511004 | Building Metal Products Manufacturing | Structural steel manufacturing | Industrial | |
| 2511007 | Garbage Chutes Manufacturing | Metal containers & boxes manufacturing | Industrial | |
| 2511008 | Fire Resistant Doors Manufacturing | Other metal indusries | Industrial | |
| 2511009 | Rigs & Oilfield Platform Manufacturing | Structural steel manufacturing | Industrial | |
| 2511010 | Scaffolds & Ladders Manufacturing | Structural steel manufacturing | Industrial | |
| 2511011 | Central Air-Conditioning Requisites Manufacturing | Appliances and machinery manufacturing | Industrial | |
| 2511013 | Metal False Ceilings Manufacturing | Structural steel manufacturing | Industrial | |
