NALCO Tender Process

National Aluminium Company Limited (NALCO) is a Navratna Central Public Sector Undertaking under the Ministry of Mines, operating an integrated chain from bauxite mining to aluminium smelting, one of India's largest and most integrated aluminium producers. NALCO's procurement spans raw materials, chemicals, capital equipment, IT systems, and civil works, totalling Rs 8,000-12,000 crore annually.

What is the NALCO Tender Process in government procurement?

NALCO operates across three vertically integrated segments. The Mines and Refinery Complex at Damanjodi, Odisha, includes bauxite mines (producing 68 lakh TPA) and an alumina refinery (22 lakh TPA). The Smelter Plant at Angul, Odisha, converts alumina to primary aluminium (4.6 lakh TPA). NALCO also has a captive thermal power plant at Angul (1,200 MW) that supplies power to the energy-intensive smelter. This integrated structure creates diverse procurement needs at each stage.

NALCO publishes tenders on its official e-procurement portal and on CPPP. Procurement is governed by NALCO's own purchase procedures, modelled on GFR principles and CVC guidelines. The Chief Vigilance Officer (CVO) oversees procurement integrity, and annual vigilance reports cover procurement process compliance.

Major procurement categories include: caustic soda (used in alumina refining, one of NALCO's largest raw material costs), carbon materials (carbon anodes and cathodes for aluminium smelting, procured from specialised manufacturers), aluminium fluoride (a process chemical for smelters), coal for captive power plants (through Coal India linkage and e-auction), heavy equipment for the smelter and refinery (imported from global OEMs), and refractory materials for pot relining.

Capital works tenders cover expansion projects, plant maintenance works, and infrastructure at Damanjodi and Angul. NALCO has been executing a significant smelter capacity expansion, generating large EPC and construction contracts.

Specialised procurement includes process equipment from global suppliers, NALCO's pot technology for primary aluminium smelting uses licenced technology that requires specific proprietary anode, cathode, and control equipment. This creates OEM-dependent procurement situations for some critical categories.

Why it matters for bidders

NALCO is a stable, high-volume government buyer for companies in the chemicals, mining equipment, and refractory materials segments. Its procurement is predictable, process plant requirements are continuous, not project-dependent, making it an excellent base-load client for approved vendors.

The approvals process for new vendors requires demonstrating technical capability, supplying test lots, and passing NALCO's quality acceptance testing. For chemical suppliers (caustic soda, aluminium fluoride), NALCO's technical committee evaluates purity specifications against NALCO's process requirements, sub-standard chemicals cause immediate process disruption with large financial consequences.

For construction and civil contractors, NALCO's expansion projects at Damanjodi and Angul provide significant opportunities for civil works, structural fabrication, equipment erection, and commissioning services. These tenders require experience in industrial construction and often heavy lifting capability.

Example

NALCO floats an annual rate contract tender for supply of 95,000 MT of carbon anode butts for its Angul smelter. The specification requires carbon content above 98.5%, specified porosity and electrical resistivity. Three vendors from India and one from China bid. The domestic L1 (a calcined petroleum coke and anode manufacturer) wins at Rs 22,500 per MT. Release orders are placed quarterly based on actual consumption. The supplier provides test certificates for each lot, and NALCO's laboratory tests samples before accepting the lot into the smelter's material yard.

Key rules / thresholds

NALCO's procurement thresholds follow CPSE guidelines, tenders above Rs 10 lakh are published on CPPP, and tenders above Rs 50 lakh are mandatory e-procurement. Single Tender procurement (no competition) requires prior approval at Board level for amounts above Rs 5 crore. Integrity Pact is mandatory for contracts above Rs 1 crore under CVC guidelines. Vendors who supply materials failing specification twice in a year are suspended from the approved list for the relevant category.