Oswego plant fire update: hot mill restart targeted for late Q2 2026

Fire or accident at a plantCapex & Operations View source PDF Explain this filing

HINDALCO · price

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Price reactionminutes from the announcement price · days from the prior close

-0.1%Reaction day

₹966.60

prior close

₹950.00

announcement price

After-mkt

timing

Nifty 100market · index membership as recorded later (tracked since Jun 2026)-0.5%+0.4% vs market

Aluminium peers, median of 12sector-2.0%+1.8% vs sector

On the reaction day the stock moved 0.4 pts more than Nifty 100 and 1.8 pts more than its Aluminium peers, over the same two closes: a difference in percentage points, not a measure of what the filing did.

Minutes after the announcementfrom the announcement price · no benchmark

Stock

+0.5

10m

+1.4

15m

+0.7

30m

+1.2

Sessions after the filingfrom the prior close

StockMarketvs marketSectorvs sector

Reaction day

-0.1-0.5+0.4-2.0+1.8

Next day

-6.3-1.9-4.4-3.3-3.0

-6.2-1.0-5.1-4.7-1.4

-7.9-0.8-7.1-5.0-2.8

-7.0-0.4-6.6-3.6-3.4

-6.4-1.9-4.5-6.2-0.2

-5.4-0.9-4.5-6.2+0.8

15d

-0.6-5.5+4.9-12.0+11.4

+0.1-8.3+8.5-15.1+15.2

+1.0-7.5+8.5-6.0+7.0

+7.9-8.6+16.5+2.3+5.5

UpDownMarket · Nifty 100Sector · Aluminium peers, median of 12Pending

Minute windows have no benchmark: there is no intraday index history to compare against.

AI summary

Hindalco's wholly owned subsidiary Novelis shared an update on two fires at its Oswego plant in New York (Sept 16 and Nov 20, 2025). Hot mill restart expected late Q2 calendar 2026. Total free cash flow impact estimated at $1.3-1.6 billion, with 70-80% potentially recoverable through insurance. Hindalco infused $750 million equity into Novelis in Dec 2025. No injuries occurred.

Likely market impact

Significant near-term financial hit on Novelis partially offset by insurance. May pressure Hindalco's consolidated earnings short-term.