Subex Ltd — Capital/Financing Update 2025

Oct 10, 2025

October 10, 2025

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BSE Limited

Phiroze Jeejeebhoy Towers Dalal Street, Mumbai- 400 001 BSE Scrip Code: 532348

National Stock Exchange of India Limited Exchange Plaza, 5th Floor, Plot no. C/l G Block, Bandra-Kurla Complex Bandra (E), Mumbai - 400 051 NSE Symbol: SUBEXLTD

Dear Sir/Madam,

Sub: Disclosure under Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015

Pursuant to Regulation 30 read with Para B of Part A of Schedule III of Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015 (“Listing Regulations”), we are pleased to inform that Subex has secured a deal with a leading communications service provider (CSP) in the Asia-Pacific region for a period of 5 years. A press release in this regard is enclosed herewith.

The details as required under SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 read with SEBI Master Circular No. SEBI/HO/CFD/PoD2/CIR/P/0155 dated November 11, 2024 are enclosed as “Annexure A”.

Kindly take the same on record.

Thanking you,

Yours faithfully, For Subex Limited

RAMU Digitally signed by RAMU AKKILI AKKILI Date: 2025.10.10 14:52:56 +05'30' Ramu Akkili

Company Secretary & Compliance Officer

Encl: as above

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Annexure- A

SI. No.	Particulars	Details
1.	Name of the entity awarding the order(s)/contract(s);	A leading Communications Service Provider (CSP) in the Asia-Pacific region.
2.	Significant terms and conditions of order(s)/contract(s) awarded in brief;	The deal is worth of USD 1.67 million. The engagement involves an upgrade aimed at enhancing the operator’s Revenue Assurance and Fraud Management (RAFM) capabilities through Subex’s advanced HyperSense platform.
3.	Whether order(s) / contract(s) have been awarded by domestic/ international entity;	International Entity
4.	Nature of order(s) / contract(s);	The engagement involves an upgrade aimed at enhancing the operator’s Revenue Assurance and Fraud Management (RAFM) capabilities through Subex’s advanced HyperSense platform.
5.	Time period by which the order(s)/contract(s) is to be executed	The contract is for a period of 5 years.
6.	Broad consideration or size of the order(s)/contract(s);	USD 1.67 million
7.	Whether the promoter/ promoter group / group companies have any interest in the entity that awarded the order(s)/contract(s)? If yes, nature of interest and details thereof	No
8.	Whether the order(s)/contract(s) would fall within related party transactions? If yes, whether the same is done at “arm’s length	No

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Leading APAC Telcom Operator Strengthens Ties with Subex via Strategic 5-Year Upgrade

Bengaluru, India [Oct 10, 2025]: Subex, a global leader in AI-driven telecom solutions, today announced that it has secured a deal with a leading Asia-Pacific communications service provider (CSP) for a period of five years.

The engagement is an upgrade and will enhance the operator’s Revenue Assurance and Fraud Management (RAFM) capabilities through Subex’s HyperSense platform. The enhanced capability will enable the CSP to further strengthen revenue protection, combat fraud more efficiently, and unlock recurring value as digital economies scale.

Commenting on the upgrade, Nisha Dutt, MD & CEO, Subex, said:

“ We are thrilled to deepen our strategic partnership with one of the region’s most prominent operators. This is a strong vote of confidence in our solutions and managed services, reinforcing our shared commitment to enabling scale, speed, and operational excellence.

By combining a focused roadmap with close collaboration, we’ll continue to deliver the kind of reliability and outcomes that customers value and reward.”

This upgrade underscores Subex’s continued leadership in providing trusted, digital solutions to global telecom operators, reinforcing its role as a partner of choice for safeguarding revenues and ensuring operational resilience.

About Subex

Subex is a telecom AI solutions company enabling Communications Service Providers (CSPs) across the globe to deliver connected experiences to their customers. Founded in 1994, Subex brings over 30 years of expertise in helping CSPs maximize revenue and profitability. With a proven expertise in business optimization and analytics, Subex is at the forefront of leveraging AI to build intelligent connected ecosystems for its customers.

Through their flagship offerings, Subex empowers Communications Service Providers to make faster, better decisions by leveraging AI across the data value chain. Subex’s award-winning portfolio encompasses Business Assurance, Fraud Management and Partner Ecosystem Management, empowering CSPs to mitigate risk, combat fraud, and safeguard profitability.

Additionally, Subex delivers scalable Managed Services and expert Business Consulting solutions.

Subex has more than 300 installations across 100+ countries. In case of any media queries, please reach out to:

Swagata Bhar Product & Communications Specialist swagata.bhar@subex.com

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