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Diffusion Engineers Limited is a Nagpur-headquartered engineering company specialising in welding consumables, wear plates and components, and heavy engineering equipment. Incorporated in 1982, the Company has progressively evolved from manufacturing welding electrodes to developing flux-cored wires, wear-resistant solutions and complex engineered equipment. Over time, it has positioned itself as a one-stop solutions provider for industrial superconditioning, helping customers enhance equipment life, reduce maintenance downtime and improve productivity.
The Company operates four manufacturing units in and around Nagpur—Unit I (1994), Unit II (2000), Unit III (2015) and Unit IV (2016)—producing a wide portfolio of special-purpose welding electrodes, flux-cored wires, wear plates, anti-wear consumables, wear parts and heavy engineering machinery.
From its India base, Diffusion Engineers serves customers across 30+ countries. Its global portfolio is strengthened through subsidiaries in Singapore, Turkey and the Philippines, and joint ventures in the UK and Malaysia. As of March 31, 2025, the Company had 486 employees and 179 workers, supporting its growing scale. The Company has six subsidiaries and maintains associate interests and joint ventures, enabling a robust international footprint.
Key milestones over four decades include transitioning to a public limited company in 1995; introducing flux-cored wire manufacturing between 1997–2000; establishing overseas presence through a Singapore subsidiary (2013) and a Philippines step-down entity (2014); and expanding Unit IV capacity in 2022. In FY 2024–25, the Company acquired land at MIDC Hingna for a new facility and achieved a successful listing on BSE and NSE on October 4, 2024, following its maiden public issue.
Diffusion Engineers Limited Key Milestones
Milestones include:
Diffusion Engineers Limited Business Segments
The Company’s operations span welding consumables, wear-resistant solutions and heavy engineering products. The Annual Report does not disclose a segment-wise revenue breakup; this section is therefore narrative only.
Public listing:
The Company completed its maiden IPO and was listed on NSE and BSE on October 4, 2024. The fresh issue of 94,05,000 equity shares, aggregating Rs 157.964 crore, was open from September 26–30, 2024, with a reserved portion of 50,000 shares for employees at a discount.
Capacity expansion:
Diffusion Engineers is expanding its Nimji facility to double its installed capacity across business lines, supported by a new complex at B33, MIDC Hingna, dedicated to special-purpose electrodes and wire strips. FY25 saw the commissioning of an additional flux-cored wire line and an advanced wire-drawing machine at Nimji.
International footprint growth:
On February 7, 2025, the Board approved setting up a wholly-owned subsidiary in the UAE (“Diffusion Engineers Middle East”, subject to regulatory approval) to provide welding services and a light fabrication shop for Middle Eastern customers. Incorporation is underway.
Operational highlights:
The Company achieved record wear-plate production and fulfilled a major order for 400+ continuous-casting rollers for a leading steel producer. It also launched a rental model for select wear parts, supported by NBFC partnerships, with two active rental contracts.
Credit ratings:
During FY25, Diffusion obtained credit ratings from:
Leadership changes:
Recognition:
The Company earned “Great Place to Work” certification for the third consecutive time, reflecting its emphasis on culture, engagement and workforce development.

The Company manufactures specialised welding consumables, wear plates and wear parts, and heavy engineering equipment. Its portfolio includes electrodes, flux-cored wires, wear-resistant solutions and large-scale engineered machinery, designed to extend equipment life and enhance operational durability.
All four manufacturing units are located in and around Nagpur, Maharashtra, across MIDC Hingna and Khapri (Uma). They produce electrodes, flux-cored wires, anti-wear consumables, wear plates, wear parts and heavy engineering equipment.
The Company serves clients in 30+ countries, with subsidiaries in Singapore, Turkey and the Philippines, and joint ventures in the UK and Malaysia. A new wholly-owned subsidiary is being incorporated in the UAE to strengthen its Middle Eastern presence.