Sigma Advanced shares hit 5% upper circuit: Fresh ₹1,600 crore Rolls-Royce deal strengthens aerospace play; check details

Shares of Sigma Advanced Systems, a prominent Indian aerospace and defence precision engineering company, were locked in the 5% upper circuit limit at ₹692.70 apiece on the NSE on Tuesday, August 25, as the company has secured a further long-term contract with Rolls-Royce through its recently acquired UK subsidiary, Bromford Precision Solutions, based in Leicester.

The company said the deal demonstrates the immediate strategic value of the acquisition and the expansion of the Group's long-term relationship with one of the world's leading aerospace OEMs.

Sigma Advanced Systems said that, valued at nearly £125m (approximately ₹1,600 crore), the agreement builds directly on the recently secured ~£300m (approximately ₹3,800 crore) Rolls-Royce long-term agreement, broadening the Group's product offering, manufacturing capability and content across critical aerospace programmes.

Together, the agreements significantly strengthen Sigma's position within Rolls-Royce's UK supply chain while increasing long-term revenue visibility.

"The Bromford acquisition adds highly complementary manufacturing capabilities in aero engine rings and casings, and advanced precision manufacturing, enabling Sigma to supply a broader portfolio of complex engine components. Under the agreement, Bromford will manufacture aero engine rings, casings, lock plates and other critical engine structures at Sigma's India and UK manufacturing facilities, creating a more comprehensive dual-source solution as directed by Rolls-Royce," the press release added.

This agreement highlights the strategic rationale behind Sigma's acquisition of Bromford. By adding complementary products, specialist manufacturing expertise and long-standing OEM approvals, Bromford immediately expands Sigma's addressable opportunity with existing customers while accelerating the Group's progression towards higher-value, programme-level aerospace partnerships.

Crucially, the agreement also secures Bromford's long-term future within the Group, as a key UK manufacturing site, safeguarding skilled engineering and manufacturing jobs and reinforcing the resilience of the UK's critical aerospace manufacturing base.

What the top official said

Sunil Kalidindi, Chief Executive Officer and Executive Director, Sigma Advanced Systems

"This agreement is another strong marker of how far India's precision engineering and defence-aerospace manufacturing base has come. Global OEMs like RollsRoyce are increasingly looking to India not just for cost advantage, but for engineering depth, quality and scale. By combining Bromford's specialist UK capabilities with our integrated India manufacturing network, we are able to offer a genuinely global, dual-source solution. This is exactly the kind of high-value, long-term programme participation that India's growing aerospace and defence manufacturing ecosystem is built for, and we are proud to be building it, one long-term partnership at a time," the CEO said.

About Sigma Advanced Systems

Sigma Advanced Systems Limited (listed on the BSE and NSE) is a leading Indian aerospace and defence precision engineering company with a growing international footprint.

The company designs, develops, and manufactures mission-critical systems across aerospace, avionics, naval systems, radars, and communication systems, built on its in-house Build-to-Spec engineering capability.

Through its UK subsidiaries, Nasmyth and Bromford, Sigma has established a strong presence in the global aerospace supply chain, producing complex precision solutions for some of the most demanding manufacturing programmes for its global OEM customers.

Sigma Advanced Systems share price trend

Shares of the company have rallied over 20% in the past 30 days, as of the August 24, 2026 close. Over the past six months, the stock has skyrocketed 297%, while on a year-to-date (YTD) basis, it has surged around 252%, data show.

Q1 FY27 earnings

As per the company's investor presentation, its revenue from operations came in at ₹374 crore, up 15.78% against ₹323 crore logged in the previous quarter. Operational EBITDA increased 10.9% QoQ to ₹61 crore.

Its profit before tax (PBT) stood at ₹49 crore against ₹127 crore logged in Q4FY26, while PAT stood at ₹38 crore in Q1 FY27 against ₹125 crore seen in the corresponding quarter of the previous fiscal year.

Regarding PBT and PAT, the company added in its footnote that Q4 FY26 and Q1 FY27 numbers are not comparable due to exceptional items.