India's transport fuel landscape may be about to undergo its biggest transformation in a decade. On April 29, the central government proposed draft rules to formally recognize E85 (85% ethanol, 15% petrol) and E100 (pure ethanol) as motor vehicle fuels — a dramatic escalation from the current E20 blending mandate that only took effect in 2023.

For investors, the question is straightforward: which companies have already built the infrastructure to supply this surge in ethanol demand?

We searched corporate filings on NSE to find out.

Why This Matters: From 20% to 85% Is Not Incremental

India currently blends around 15-18% ethanol with petrol under the Ethanol Blending Programme (EBP). The E20 mandate — requiring all new vehicles to run on 20% ethanol-blended fuel — was itself considered ambitious when announced. Moving to E85 and E100 multiplies ethanol demand by 4-5x for every litre of fuel consumed.

Per Zuari Industries' FY2025 annual report, India's annual installed ethanol capacity stands at 1,810 crore litres as of May 2025 — more than quadruple its level 11 years ago. This includes 816 crore litres from molasses-based distilleries, 136 crore litres from dual-feed facilities, and 858 crore litres from grain-based units.

The global ethanol market, valued at $87.71 billion in 2022, is projected to grow to $135.07 billion by 2030. India currently contributes about 5% of global production but accounted for one-third of recent demand growth.

The Companies Best Positioned

Dalmia Bharat Sugar (DALMIASUG) — The Capacity Builder

Dalmia Bharat Sugar has been the most aggressive capacity expander in the industry. Per their FY2025 annual report, installed distillery capacity now stands at 850 KLPD (plus 100 KLPD under construction), up from just 600 KLPD in FY2022. Ethanol production reached 17.94 crore litres in FY2025 at an average realization of ₹62.2 per litre.

The company's feedstock mix has shifted meaningfully — from 80:20 molasses-to-grain in FY2024 to 66:34 in FY2025 — giving it flexibility regardless of sugar season dynamics. Most importantly, the distillery segment is the company's highest-margin business, contributing 19% of segmental EBITDA per their FY2025 annual report. Between 2018 and 2024, the company invested nearly ₹1,106 crore, with roughly half concentrated in the last two years on distillery expansion.

Triveni Engineering (TRIVENI) — Scale and Integration

Triveni Engineering operates at a distillation capacity of 860 KL per day, making it one of India's largest ethanol producers alongside its 1 million tonnes of annual sugar production, per their Q3 FY25 quarterly results. The company's integrated sugar-ethanol-power model means that any policy-driven increase in ethanol demand flows directly into better capacity utilization.

Balrampur Chini Mills (BALRAMCHIN) — The Revenue Diversifier

Balrampur Chini, India's second-largest sugar manufacturer with ten plants in Uttar Pradesh, has steadily grown its ethanol contribution. Per their FY2025 annual report, industrial alcohol (primarily ethanol for blending) accounted for 25.64% of total revenue from operations. The company has dedicated its distillery capacity majorly to ethanol production for oil marketing companies, with guaranteed purchase agreements providing revenue visibility.

The company is also investing in Polylactic Acid (PLA), a biodegradable polymer derived from ethanol, signaling a longer-term bet on the ethanol value chain beyond just fuel blending.

EID Parry India (EIDPARRY) — Expansion Paying Off

EID Parry operates five distilleries with a combined capacity of 582 KLPD, supported by six sugar factories. Per their Q3 FY25 quarterly results, distillery segment revenue grew 64% year-over-year, benefiting from enhanced capacity utilization after completing expansions at Haliyal (120 KLPD) and Nellikuppam (45 KLPD). The company describes its distilleries as "multi-feed and multi-product," giving it the agility to adapt to policy changes in feedstock and pricing.

Dhampur Sugar Mills (DHAMPURSUG) — Diversified Feedstock

Dhampur Sugar supplied 12.32 crore litres of ethanol in FY2024, per their annual report, sourced from multiple routes: 668 lakh litres via B-heavy molasses, 344 lakh litres from syrup, 62 lakh litres from C-heavy, and 157 lakh litres from grain. Average realization stood at ₹62.07 per litre. The company commissioned a 100 KLPD grain-based expansion in Q1 FY2024, demonstrating commitment to feedstock flexibility — a critical advantage as E85/E100 demand scales up.

Maruti Suzuki (MARUTI) — The Demand-Side Enabler

On the consumption side, Maruti Suzuki has already prototyped the WagonR Flex Fuel Vehicle, showcased at Auto Expo 2023. Per their FY2023 annual report, flex-fuel vehicles are "developed to run on 20%-85% ethanol blending" and can reduce carbon emissions by approximately 79% versus gasoline. All Maruti products have been updated to E20 fuel material compliance. If E85 rules are finalized, Maruti is the automaker closest to mass-market flex-fuel production — a critical demand catalyst for ethanol producers.

What Retail Investors Should Do

The E85/E100 proposal is still at the draft rules stage — it needs industry comment periods and final notification before taking effect. But the direction of policy is unmistakable. Companies that have spent the last three to four years aggressively building distillery capacity — Dalmia Sugar, Triveni, Balrampur Chini, EID Parry, and Dhampur Sugar — are the ones with operating leverage into this demand expansion. Look for companies with high capacity utilization rates, diversified feedstock capability (both molasses and grain), and guaranteed offtake agreements with oil marketing companies. Avoid companies where ethanol is still a small or speculative part of the business. The real winners here are the ones who bet early and built real infrastructure.

Data sourced from company filings on NSE via Xaro.