SPML Infra Limited has submitted a newspaper advertisement to the National Stock Exchange and BSE Limited, pursuant to Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015. The advertisement, published on 8th May 2026 in the Business Standard English edition and the Arthik Lipi Bengali edition, pertains to a Special Window for Transfer-cum-Dematerialisation of Physical Securities. The submission was made by Company Secretary Swati Agarwal on behalf of the company.

Special Window for Physical Share Transfer

Pursuant to SEBI Circular No. SEBI/HO/MIRSD/RTAMB/CIR/P/2020/166 dated 7th September 2020, read with SEBI Circular No. SEBI/HO/MIRSD/RTAMB/P/CIR/2021/602 dated 23rd July 2021, SPML Infra Limited has notified its shareholders of a Special Window open for a period of one year. The key details of this window are summarised below:

Eligibility Criteria for Re-Lodgement

The Special Window is applicable only for the following categories of shareholders:

• Shareholders whose share transfer request was lodged prior to April 1, 2019 but was either rejected or returned due to deficiency in documents, process, or otherwise.
• Shareholders whose share transfer request was not lodged prior to April 1, 2019 and who continue to hold the Original Share Certificate along with a duly executed transfer deed.

Key Conditions and Requirements

Shareholders intending to re-lodge transfer requests under this Special Window must note the following mandatory conditions:

• All shares transferred under the special window will be issued exclusively in dematerialised form.
• The lodger must possess a Demat Account and provide its Client Master List along with the transfer documents and share certificates.
• Securities transferred shall remain under a lock-in period of one (1) year from the date of registration of transfer and shall not be transferred, pledged, or hypothecated during this period.
• Shares re-lodged for transfer, including those requests pending with the Company or RTA as on date, shall be issued in dematerialised form subject to successful verification.
• The RTA will be able to accept transfer requests only up to February 4, 2027.

Company and RTA Contact Details

Shareholders are requested to contact the company's Registrar and Share Transfer Agent for all matters related to this Special Window. Additionally, all shareholders are requested to update their e-mail address with the Company's Registrar and Share Transfer Agent or Depository Participants. The registered office of SPML Infra Limited is located at 22, Camac Street, Block-A, 3rd Floor, Kolkata - 700016, and can be reached at Tel.: 033-40091200, E-mail: cs@spml.co.in , or Website: www.spml.co.in .

SPML Infra has secured a landmark ₹1,128 crore contract from the National Thermal Power Corporation (NTPC) to develop a 1 GWh Battery Energy Storage System (BESS) at NTPC's Barauni Thermal Power Station in Bihar. This marks the first large-scale grid Battery Energy Storage System project for SPML Infra and ranks among the largest single BESS orders awarded in India, underscoring a significant milestone in the country's clean energy journey.

Order Details

The key highlights of this contract are summarised below:

Scope of Work

The project encompasses the supply, civil works, and erection of a 250 MW/1,000 MWh Battery Energy Storage System comprising 5 MWh DC containers with Battery Management System (BMS) and Thermal Management System (TMS), 33 kV panel boards, 220 kV DC & AC cables, 220 kV switchyard, and all associated accessories. The project will be executed over an 18-month period, followed by 15 years of operation and maintenance. The BESS will seamlessly integrate large-scale battery storage with existing thermal power infrastructure, enabling peak load management, grid stability, and efficient integration of renewable power.

Strategic Significance

This order anchors SPML Infra's broader strategic push into energy storage infrastructure. The company is advancing its commitment to developing battery energy storage solutions in partnership with its technology provider, Energy Vault (NYSE: NRGV), purpose-built for India's scale and ambition. As India's power networks evolve, Battery Energy Storage Systems are increasingly becoming central to a stable, responsive, and future-ready electricity grid.

Commenting on the development, Abhinandan Sethi, Managing Director, SPML Infra Limited, said:

"This order marks a defining moment for SPML Infra, a firm commitment to the large-scale battery energy storage sector. Energy storage will define how India powers its future, and we intend to be architects of that transformation. Partnering with NTPC on this landmark project is both a privilege and a responsibility we embrace fully. We are here to build the grid India needs — flexible, stable, and built for scale."

About SPML Infra

SPML Infra Limited is a distinguished infrastructure development company with over four decades of expertise across power, water, environment, and technology sectors. With a pan-India presence, SPML has successfully executed over 700 projects, including drinking water facilities, wastewater treatment, integrated sewerage networks, power transmission and distribution, substations, rural electrification, and smart city solutions. The company has contributed to providing clean drinking water to over 50 million people across urban and rural areas. SPML Infra is ranked 14th among the World's Top 50 Private Water Companies as per Global Water Intelligence (GWI), London, and is recognised as one of India's 10 Best Infrastructure Companies.