Karbonsteel Engineering in FY26: Growth at High Utilisation, Margins Hit by Inflation and Expansion Frontloading

Karbonsteel Engineering Limited is a structural engineering and fabrication company that designs, manufactures and assembles heavy and precision steel structures for industrial and infrastructure clients. In FY26, the company reported revenue of 300.88 crore and EBITDA of 32.67 crore, with PAT of 10.51 crore. Total income rose 10% year on year to 301.69 crore, but profitability weakened as EBITDA fell 11% and PAT declined 26%.

The year captured a key contrast. Demand and execution remained steady, reflected in high capacity utilisation and a rising order book. But the second half faced disruptions in cutting gas supply, input inflation, a temporary shift in billing structure for a key customer, and frontloaded costs related to the Umbergaon expansion and consolidation of the smaller Khopoli unit.

Operating model and where revenue comes from

Karbonsteel operates in four verticals: heavy steel fabricated structures, precision or technological structures, steel bridge structures, and pre-engineered buildings. Its manufacturing footprint includes Khopoli, Maharashtra (since 2014) and Umbergaon, Gujarat (since 2017), with the Umbergaon unit described as RDSO approved for fabrication of composite and plate steel bridge girders.

In FY26, revenue was concentrated in two verticals. Heavy steel structures accounted for 76% of revenue, while precision or technological structures contributed 22%. Steel bridge structures contributed 2%. The presentation shows no revenue from PEBs, trading, or scrap sales in FY26.

This mix matters because the company also highlighted a period of lower realisation work. A portion of output for a key customer was executed on a job-work basis, where the client supplied material. The company stated that under a regular contract model, revenue would have been higher by about 40 crore.

Execution intensity remained high, but H2 faced disruptions

The company’s utilisation trend shows a steady ramp: 69.3% in FY22, 73.7% in FY23, 80.7% in FY24, 90.6% in FY25, and 96.4% in FY26. The facility level table indicates Umbergaon utilisation of 95.23% in FY26, while Khopoli utilisation is shown at 86.83% for FY26.

Operational volumes also increased in FY26. The company reported fabrication volume of 29,011 MT, labour volume of 5,890 MT, and total volume of 34,900 MT, representing 22.8% year-on-year growth in total volume.

However, the second half was described as difficult. In March, a 20-day LPG cutting gas supply disruption led to unfinished inventory and impacted sales. The company also cited rising steel, consumable, paint, crude oil and LPG costs as the main reason for margin pressure.

A separate disruption came from labour availability. The company stated that due to the West Bengal election and restricted volumes, it faced a labour shortage, with almost 40% of the required workforce not present at the unit.

Management linked these factors to a deferral of both customer orders and the expansion timeline. The Umbergaon capacity expansion was deferred due to gas supply constraints, manpower availability, and inflationary pressures, and is now expected to be completed by October 2026.

The Umbergaon expansion is the centrepiece of the next phase

Karbonsteel’s current installed capacity is presented as 30,000 MT per annum, with an expansion underway to take it to 54,000 MT per annum, expected to commence from Oct-26. The company also indicated that the Khopoli facility is to be shut down in FY26–27, describing the smaller unit as not viable for large and complex orders.

In the “Road Ahead” section, the company presented a revenue framing tied to capacity. It indicated a potential revenue opportunity of 540+ crore at 54,000 MT annual fabrication capacity, based on an average realisation of 100 per kg. This is a statement of potential linked to volume and assumed pricing rather than a firm forecast.

The company also highlighted the order book as support for near-term visibility. Order book increased from 198 crore in March 2025 to 253 crore in March 2026, and then to 353 crore as of May 2026. It also stated an additional order pipeline of 150 crore as of 31 May 2026.

Why margins fell in FY26 and what the company says is temporary

The presentation provides a structured explanation for margin compression:

First, raw material inflation. The company said steel and allied input costs increased by around 23% during H2 FY26, and gross margin moderated by about 108 bps, with limited pass-through on smaller contracts due to the absence of a price variation clause.

Second, gas shortage and labour disruptions. Intermittent shortages affected production scheduling and led to under-absorption of labour overheads and changes in contract labour. The company stated alternative supply arrangements are now secured.

Third, change in revenue mix. The company’s total production volume rose, but a higher share of conversion job-work for a key customer reduced realisation compared to steel fabrication projects.

Fourth, expansion-related costs. Rental expenses increased from 1.54 crore to 3.94 crore in FY26, with consolidation of Khopoli operations into Umbergaon and one-time transition and relocation expenses.

Fifth, an exceptional item. The company wrote off 1.65 crore as bad debt during FY26, describing it as conservative accounting and non-recurring.

To help investors interpret the year, the company provided a PAT normalisation bridge. Starting with reported PAT of 10.51 crore, it added back the 1.65 crore bad debt write-off, 2.40 crore of capacity expansion rental cost, and 1.84 crore one-time rundown cost related to the Khopoli plant. This results in a normalised PAT of 16.56 crore for FY26.

Automation is positioned as the structural answer to FY25–26 disruptions

Beyond capacity, the company is also framing automation as a long-term operating leverage tool. The presentation outlines three automation pillars: a laser cutting machine, an automatic beam fit-up and welding centre, and an automatic blasting facility.

The stated benefits include higher productivity, better quality consistency, and reduced labour and gas dependency. The company quantified some expected impacts: +15% labour efficiency on the same floor space, about 25% labour cost reduction on automated processes, and significantly reduced gas and consumable dependency because laser replaces gas cutting.

The most explicit financial linkage is a margin target. The company stated that automation and sustainability initiatives are expected to drive a 1% improvement in operating margins from FY28.

Takeaways

FY26 shows a business that continued to scale, with revenue growth and high utilisation supported by strong project execution and a growing order book. At the same time, the year exposed sensitivity to input inflation, gas supply reliability, labour availability and temporary mix changes.

The next phase rests on two deliverables that have clear timelines in the presentation: commissioning the Umbergaon expansion by October 2026 and executing automation initiatives that the company expects to translate into a 1% operating margin improvement from FY28. If the expansion comes onstream as planned and external disruptions normalise, the company expects improved volumes, better operating leverage and gradual margin improvement.