Bagging/Receiving of orders/contracts

WCL/SEC/2026 25th September, 2026 BSE Ltd. National Stock Exchange of India Ltd. Listing Department, Exchange Plaza, P. J. Towers, Dalal Street, Bandra-Kurla Complex, Mumbai – 400 001. Bandra (E), Mumbai – 400 051. (Scrip Code: Equity - 532144), (Symbol: WELCORP, Series EQ) (NCD – 973309) Dear Sirs/ Madam, Sub: Welspun Corp Wins Largest-Ever Order for HFIW Pipes in Company's History, Valued at approx. USD 412.5 Million (~₹4,000 Crore), to be Supplied from its USA Manufacturing Facility Ref.: a. Regulation 30 of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015 (“Listing Regulations”), as amended from time to time b. ISIN: INE191B01025 Pursuant to Regulation 30 of the Listing Regulations, we wish to inform you that Welspun Tubular LLC, a wholly owned subsidiary of Welspun Corp Limited in the USA, has secured the largest order in its history, in terms of volume, length and value, for the supply of High-Frequency Induction Welded (HFIW) pipes, valued at approx. USD 412.5 million (~₹4,000 crore). The pipes will be manufactured at the Company's newly upgraded HFIW mill, with enhanced capabilities, at Little Rock, USA. The order will be executed during FY28 and FY29. With this order, the Company's global order book stands at a record USD 4.7 billion (~₹45,000 crore), the highest in its history. This order underscores the scale, quality and execution capability of the Company's operations, and reinforces its long-term strategy of expanding global manufacturing capacity and deepening relationships with marquee international clients. This is for your information and records. Thanking you. Yours faithfully, For Welspun Corp Limited Kamal Rathi Company Secretary and Compliance Officer ACS-18182