Founded in 1996, Karamtara Engineering is India's largest manufacturer of solar mounting structures and tracker components alongside high-voltage transmission lattice towers. The company operates an integrated model across eight manufacturing plants in India and Italy, relying on backward integration (making its own structural steel inputs and performing in-house corrosion coating instead of buying them) to serve global utility developers.
At a glance
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| Scale | Revenue rose from ₹1,244.81 cr (FY22) to ₹2,425.15 cr (FY24) and ₹1,413.10 cr in H1 FY25 |
| Profitability | PAT expanded from ₹12.65 cr (FY22) to ₹102.65 cr (FY24) and ₹58.99 cr in H1 FY25 |
| Business mix | Solar energy structures alongside transmission lattice towers, hardware, and fasteners |
| Market position | India's largest solar mounting structure & tracker component maker by capacity |
| Footprint | 8 operating facilities across India and Italy with 567,000 MTPA installed capacity |
| Geographic mix | Exports formed 57.56% of FY24 revenue (US 48.17%) and 47.33% in H1 FY25 |
| Customer concentration | Top 10 clients contributed 63.47% of revenue in FY24 and 53.91% in H1 FY25 |
| The offer | ₹1,350 cr fresh issue plus OFS; Promoter Selling Shareholders are selling |
Business segments
Two integrated manufacturing engines: solar tracker and mounting structures, and power transmission lattice towers with line fittings.
1. Solar structures: engineering utility-scale tracker hardware
Dedicated solar mounting hardware and single-axis tracker structural components form the company's largest production base, accounting for 374,700 MTPA of capacity.
- Broad foundation product catalogue - it fabricates tracker ground piles, support piers, torque tubes, Z-posts, post couplers, and module hat purlins to supply complete structural kits for utility-scale solar farms.
- Concentrated manufacturing cluster - four specialised operating units in Tarapur deliver an aggregate installed capacity of 374,700 metric tonnes per annum (about 13.20 gigawatts), enabling fast delivery schedules for high-volume project developers.
- Rapid volume scaling - output expanded to 196,635 metric tonnes (about 6.51 gigawatts) in FY24 and reached 114,365 metric tonnes in the first half of FY25 as utility tracker adoption accelerated.
- Commercialising new lines - its dedicated torque tube facility operated for just three months in FY23 before achieving its first full operational year in FY24, broadening its component range beyond basic foundations.
- Embedded vendor tier - serves as a tier-one component supplier to major tracker technology providers and engineering contractors, including Gamechange Solar, Soltec, Nextracker US, and Mahindra Susten.
2. Transmission lines: lattice towers and high-voltage line hardware
The legacy utility business delivers extra-high-voltage lattice transmission towers and forged line hardware, backed by a track record of over 500,000 metric tonnes shipped.
- Extra-high-voltage coverage - designs and fabricates heavy lattice steel towers rated up to 1,200 kilovolts, having delivered more than 500,000 metric tonnes of utility grid structures since entering the sector in 1998.
- Integrated fastener line - operates a 23,100 metric tonne capacity unit in Butibori producing high-tensile bolts, studs, and washers that feed internal tower fabrication while supplying external wind and solar clients.
- Specialised European forge - manufactures forged overhead transmission line clamps, vibration dampers, and conductor fittings up to 1,000 kilovolts through its Solbiate Arno forge in Italy.
- Restoring dedicated tower capacity - shifting solar structural lines out of the original Tarapur facility back into dedicated solar units so that lattice tower capacity can be fully restored for domestic grid evacuation tenders.
- Global utility customer roster - supplies domestic and international transmission contractors, including M/S Al Babtain Power & Telecommunication, Waaree Renewable, and Elecnor.
In-house rolling mills and captive galvanizing baths
Captive hot-rolling mills and hot-dip galvanizing lines feed raw profiles directly to downstream fabrication units, protecting operating schedules and coating quality.
- Upstream steel profile engine - the Saravili rolling mill supplies up to 168,000 metric tonnes of captive structural steel beams, angles, and channels, reducing reliance on third-party merchant steel rerollers.
- Captive anti-corrosion network - maintains 258,000 metric tonnes of aggregate hot-dip galvanizing bath capacity across its plants to apply protective zinc coatings to outdoor solar and transmission steel.
- Automated structural engineering - links BOCAD structural modelling and PLS Tower design software to automated CNC fabrication lines equipped with internet-connected sensors for real-time maintenance tracking.
Built to custom drawings with input cost pass-through
- Formula-based raw material pass-through - procures steel billets, plates, and zinc through 3-to-12-month umbrella framework contracts, allowing the company to pass steel price swings through to finished component prices.
- Export shift to delivered terms - higher gross pricing on export contracts has been accompanied by a shift to Delivered Duty Paid terms (where the seller covers overseas ocean shipping and customs duties), increasing gross freight outlays.
- Scrap recycling and export credits - monetises zinc ash, zinc dross, and steel offcuts generated during fabrication while collecting statutory export incentives under duty drawback and tax remission schemes.
- Consumable intensity in hardware - fastener and forged hardware production consumes a higher proportion of tooling, dies, and operating supplies per tonne than standard structural profile punching.
Utility tracker adoption drives export and domestic expansion
Global utility solar projects are replacing fixed-tilt racking with single-axis trackers, creating sustained component demand across the United States, Europe, and India.
- Structural switch to trackers - global solar tracker installations are forecast to expand to 377.7 gigawatts by 2028, whereas fixed-tilt racking penetration in key markets like the United States is projected to drop toward zero.
- Domestic sourcing requirements - Indian domestic content regulations require government-supported solar installations to raise local component sourcing thresholds progressively to 55% from 2026 onwards.
- Broad competitive field - competes against specialized structural fabricators and tower makers including PMEA Solar Tech, Purshottam Profile, Skipper, Utkarsh India, and SAE Towers.
A Maharashtra hub with Italian forge and Saudi foothold
The corporate structure combines domestic manufacturing units in Maharashtra with overseas commercial and forging subsidiaries.
| Entity | Stake | What it adds |
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| Karamtara Italy SRL | 100.00% | European holding and distribution arm incorporated in 2011 |
| Iselfa Morsetteria SRL | 100.00% (via Karamtara Italy) | Milan hardware manufacturing subsidiary acquired for €2.30m in 2011 |
| Karamtara Renewables Saudi Ltd | 100.00% | Saudi single-person LLC incorporated July 2024 to build KSA manufacturing presence |
| Karamtara USA Inc. | 100.00% | US commercial entity incorporated in 2017 to handle North American solar sales |
| Clean Max Ame Pvt Ltd | 26.00% | Captive solar-wind power associate under a 25-year energy supply agreement |
Deleveraging balance sheet debt and funding capacity additions
- Debt and acceptances clearance - plans to deploy ₹1,050.00 crore from fresh issue proceeds during FY26 to repay bank borrowings and settle letters of credit raised to buy raw materials.
- Solar and wind capex pipeline - secured a ₹152.00 crore debt sanction to build a new solar tracker pile plant in Gundle, Palghar, while constructing a tubular wind turbine tower plant in Bhuj.
- Pre-IPO equity funding - raised ₹307.17 crore from 17 institutional and individual investors at ₹310 per share in January 2025, providing growth capital prior to the public issue.
Worth keeping in mind
- Promoters Rajiv Singh and Tanveer Singh provided personal guarantees securing ₹1,470.00 cr consortium and diverse lender limits.
- The company carried out a sale of investment property assets consisting of residential real estate directly to company directors for ₹48.50 cr.
- A retrospective bonus issue of 50:1 (276,625,000 shares) was executed in Dec 2024 after authorized share capital was expanded to ₹500.00 cr.
- Executive directors' remuneration jumped 153.86% to ₹9.63 cr in FY24, which included a ₹1.25 cr performance payout to an individual director.