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September 21, 2021

National Stock Exchange of India Limited Exchange Plaza, 5[th] Floor, Plot No. C-1, G Block, Bandra Kurla Complex, Bandra (East) Mumbai - 400 051.

BSE Limited Phirozee Jeejeebhoy Towers, Dalal Street, Mumbai - 400 001.

Sub: Outcome of Analyst/ Institutional Investor Meeting

Ref.: Scrip ID - STLTECH/ Scrip Code – 532374

Dear Sir/Madam,

Pursuant to Regulation 30 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, we wish to inform you the outcome of Investor Meets held as detailed below :-

Date	Name of the Institution	Venue of the Meeting	Type of the Meeting
Sep 21, 2021	Motilal Oswal	Mumbai	One on One
Sep 21, 2021	Edelweiss	Mumbai	One on One
Sep 21, 2021	KR Choksey	Mumbai	One on One
Sep 21, 2021	Maybank	Mumbai	One on One
Sep 21, 2021	Emkay Global	Mumbai	One on One

The Company’s presentation in this regard is attached herewith.

Kindly take the above on your record & acknowledge the receipt.

Thanking you,

Yours faithfully,

For Sterlite Technologies Limited

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Amit Deshpande

Company Secretary & Corporate General Counsel (ACS 17551)

Sterlite Technologies Limited Registered office: 4th Floor, Godrej Millennium, Koregaon Road 9, STS 12/1, Pune, Maharashtra- 411 001, India. CIN - L31300PN2000PLC202408

stl. tech

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Investor Presentation Sep.’21

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Safe Harbour

Certain words and statements in this communication concerning Sterlite Technologies Limited (“the Company”) and its prospects, and other statements relating to the Company’s expected financial position, business strategy, the future development of the Company’s operations and the general economy in India & global markets, are forward-looking statements.

Such statements involve known and unknown risks, uncertainties and other factors, which may cause actual results, performance or achievements of the Company, or industry results, to differ materially from those expressed or implied by such forward-looking statements.

Such forward-looking statements are based on numerous assumptions regarding the Company’s present and future business strategies and the environment in which the Company will operate in the future.

The important factors that could cause actual results, performance or achievements to differ materially from such forward-looking statements include, among others, changes in government policies or regulations of India and, in particular, changes relating to the administration of the Company’s industry, and changes in general economic, business and credit conditions in India.

The information contained in this presentation is only current as of its date and has not been independently verified. No express or implied representation or warranty is made as to, and no reliance should be placed on, the accuracy, fairness or completeness of the information presented or contained in this presentation. None of the Company or any of its affiliates, advisers or representatives accepts any liability whatsoever for any loss howsoever arising from any information presented or contained in this presentation. Please note that the past performance of the Company is not, and should not be considered as indicative of future results. Furthermore, no person is authorised to give any information or make any representation which is not contained in, or is inconsistent with, this presentation. Any such extraneous or inconsistent information or representation, if given or made, should not be relied upon as having been authorized by or on behalf of the Company.

The Company may alter, modify or otherwise change in any manner the contents of this presentation, without obligation to notify any person of such revision or changes.

Persons should consult their own financial or tax adviser if in doubt about the treatment of the transaction for themselves.

These materials are confidential, are being given solely for your information and for your use, and may not be copied, reproduced or redistributed to any other person in any manner. The distribution of this presentation in certain jurisdictions may be restricted by law. Accordingly, any persons in possession of this presentation should inform themselves about and observe any such restrictions.

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----- Start of picture text ----- CompanyOverview----- End of picture text -----

1 2 3 4 5 Company Digital network STL’s Future Q1 FY’22 STL Annexure overview growth Story unique proposition growth levers updates financials

Core Business

Customer Segments

End-to-End Solutions

Portfolio Offerings

Unique Capabilities

We Integrate Digital Networks for Our Customers

Cloud Citizen Large Companies Networks Enterprises

Telcos

Optical Wireless FTTx Network Connectivity Solution Integration

Optical Interconnect Products

System Integration Services

Virtualised Access Products

Network Software Products

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Network Design Services
Glass Preform
- Digital BSS Platforms
Programmable FTTx
• Virtualised RAN
- Network Integration Services
Optical Fibre
Network Operations Platforms
```
- Network O&M Services 
```
Optical and Specialty Cables • RAN Intelligent Controller
• Optical Interconnect Kits Network Orchestrator
- Data Centre Network Private Enterprise Network

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----- Start of picture text ----- With a strong legacy and global capabilities202120192017Optical Fibre European Data Acquisition of Clearcomm, a2014Industry 4.0 Centre Services - network Integration2012 Glass Plant IDS Acquisition company in UK1988 1995 Started optical Optical Fibre Centre of Excellence Centre for Smarter Networksfibre unit inEstablished as Started Optical Jiangsu, Chinaa telecom cable Fibre PlantcompanyOptical Fibre CableStructured DataPlant Cables Manufacturingset up1993 2004 in Brazil Telecom SoftwareAcquisitionAcquisition of2013 Metallurgica Bresciana vRAN Investment Acquisition of Opticals.p.a., Italy ( OFC ) in ASOCS Interconnect Company2015Optotec S.p.A Italy20182020----- End of picture text -----

Our company in numbers

Rs. 48.25 bn.

FY21 Revenue

India (56%), EMEA (37%), America (4%), China (1%), RoW (2%)

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Global production facilities

50M fkm optical fibre capacity

Software Development Centre

GLOBAL FOOTPRINT

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MANUFACTURING UNITS SALES OFFICES

Innovation centres

India and UK System Integration Services

582

Patents

Across the network layers

Zero

Waste to Landfill Shendra, Rakholi, Dadra

30+ Nationalities ~3,100 Employees

Driven by our purpose to transform millions of lives

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----- Start of picture text ----- SUSTAINABLEOPERATIONS----- End of picture text -----

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----- Start of picture text ----- GOVERNEDWITH CARE----- End of picture text -----

ENVIRONMENTALLY

RESPONSIBLE

Strong internal governance

World’s 1[st] Committed towards ZWL Certified UN Goals**

57% Global Advisory Council led by transformative technology leaders

135,000+ MT

100%

Waste diverted from landfills

Manufacturing locations to be ZWL certified Water positivity globally Sustainable Sourcing

25% diversity

97%

in Independent Directors

Waste recycled and reused

50%, 7,500+ tCO2e

Two of the Big Four

Reduction in carbon footprint

800+ MT

as statutory & internal auditors

Plastic saved through innovative packaging

1.15M+ m3

Executive and management committees for each business in place

3R

Water recycled and reused at STL and replenished in surrounding communities

Approach to reduce, reuse, recycle

Impacting 5 mn lives

ESG Goals Targeting 5 mn by 2025

Undertaking 5 mn plantations
Replenishing 5 mn cubic meters of water in communities

**UNGC – United Nations Global Compact

*All figures are cumulative (up to Q1 FY 22)

TRANSFORMING LIVES

1.64 mn+ lives impacted

3,500+

Rural women empowered

1,400+

Individuals digitally empowered

50

ESG awards, including 7 global, won

With a strong board and leadership team

Independent Directors

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Kumud Srinivasan

(Non-Executive & Independent Director)

VP and Director of Non-Volatile Fab Manufacturing and Automation Systems at Intel Corporation
Has spent 30 years at Intel in US, leading multiple global functions, prominent ones being R&D for technology manufacturing, industrial automation and IoT for manufacturing facilities
Served as the President of Intel India from 2012 to 2016

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Sandip Das

(Non-Executive & Independent Director)

One of Asia’s most respected telecommunications professionals and an acclaimed Chief Executive
Ex-MD of Reliance Jio, Group-CEO, Maxis Communications and Hutchison Essar Telecom (now Vodafone), India
One of the founding members of private telephony in India and a part of the group of individuals that founded Hutchison Max Telecom in 1994

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S. Madhavan

(Non-Executive & Independent Director)

Fellow member of institute of chartered accountants of India
Holds directorial positions in top listed companies like HCL technologies, ICICI Bank, UFO Moviez and Transport Corporation of India
Had set up a successful indirect tax practice, which got merged with PWC.
Held leadership positions for over 14 years at PWC and was instrumental in leading tax practice

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B. J Arun

(Non-Executive & Independent Director)

Founded and led multiple successful ventures in silicon valley including California Digital, a Linux-based HPC leader and Librato, a software company
Ex CEO of July Systems - a location-based mobile management platform
Currently the Vice President of Tie Global
Remains dedicated to fostering entrepreneurship in technology community

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1 2 3 4 5 Company Digital network STL’s Future Q1 FY’22 STL Annexure overview growth story unique proposition growth levers updates financials

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----- Start of picture text ----- Industry evolution from Telecom to DigitalAgricultureBankingGeospatialAR/VRHealthcare EntertainmentVideoVoiceDigital-ConnectivityContent Platform CONSUMER ENTERPRISE-Storage-ProcessingApps Data - Analytics/AI Security DefenseContentGaming Automotive----- End of picture text -----

Leading to acceleration of digital connectivity

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----- Start of picture text ----- Global IP Trafficin Zettabytes----- End of picture text -----

Internet users

In billions of people

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----- Start of picture text ----- • 2.2 mn new userseveryday came onlinesince 2020----- End of picture text -----

o 3X the adoption rate vs. before

Source: Cisco for Global IP traffic

6.4 bn people

Source : Internet World Stats, for Internet users

In 2015-18, 0.7 mn users came online everyday
Global IP traffic will grow 3X in the next 3-4 years

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----- Start of picture text ----- With increased capital, including from new investor groupsTelcos and Cloud companies are New capital is coming from PE funds,increasing their CapEx Governments and EnterprisesTelcos Private EquityMuch higher capex in2021 and beyond EnterprisesAudi, Ford, BASF invest in privateCloud5GCitizenNetworksannounce globalData centres•UK invests $6.9 bnexpansions•India lays out $ 2.4 bn•US to spend $65 bn toallocates $9.2 bn for“future-proof” connectivityRDOFData centre capex forecast by equipment category----- End of picture text -----

With increased capital, including from new investor groups

Source : Analysys Mason, IHS Markit, Omdia

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----- Start of picture text ----- And new technologies becoming mainstream5G takes FTTx connects O-RAN becomescenter-stage many endpoints mainstream----- End of picture text -----

Fastest technology to reach 400 mn users, 173 5G commercial networks , 630 kinds of 5G handsets

Fibre to the x: - Home - Enterprise - Tower - Curb

start Major operators trials or deployments , including Verizon, Etisalat, DT, Orange, Telefónica, Vodafone, Airtel and more

Industry experts also recognise the shift

5G Subscribers base is expected to hit 4.4 bn. by 2026
In Europe, FTTH/B subscribers is expected to double in next 6 years to 208 mn
Analysys Mason expects 82% of CSPs to support open interfaces/multi-vendor RAN

Sources: Public News, Industry reports, Analysys Mason, STLpartners, FTTH Council

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5G, FTTx and rural connectivity are driving up the fibre demand

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----- Start of picture text ----- Optical Fibre Global demand610In mn fibre kilometres5885645344994774702019 2020 2021E 2022E 2023E 2024E 2025E----- End of picture text -----

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----- Start of picture text ----- 5G----- End of picture text -----

A decade-long digital network creation cycle is here!

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----- Start of picture text ----- FTTxRuralconnectivity----- End of picture text -----

Source: CRU Telecom cables market outlook: estimates in Feb’21

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----- Start of picture text ----- With an increased TAM, we are well poised to lead thisdecade of network creationTotal Addressable Market$ BN$40 bn5 Virtualized Access5x 3 Network Software14 System Integration$ 16 bn3$8 bn5 Optical Solutions187.5 7.52015 2018 2021----- End of picture text -----

5x increase in TAM over the last 5 years Now focused on increasing market share of the higher TAM

Sources: CRU, BCG, Technavio, Grand view research, IHS markit, Omdia, STL estimates

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1 2 3 4 5 Company Digital network STL’s Future Q1 FY’22 STL Annexure overview growth story unique proposition growth levers updates financials

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----- Start of picture text ----- 25 years of experience in optical connectivityOptical Fibre Optical Fibre Cable Optical Interconnect pFTTxJiangsuSterliteMetallurgica Sterlite OptotecAurangabad Waluj AurangabadShendraIndia Tongguang Fibre Co. Limited SilvassaRakholi BrescianaDello Conduspar Parana ItalySpA India, USIndia IndiaItaly BrazilHaimen-CityChinaGlass OpticalPure Optical Optical ProgrammablePreform Fibre CableSilicon Fibre Interconnect FTTx(Restricted Players (Cable Manufacturers <200)(Limited Players <50)<10)----- End of picture text -----

STL’s unique manufacturing capabilities with complete vertical integration One of the top 3 integrated fibre producers in the world

42 mn*

8 50 mn 42 mn GLOBAL FKM OPTICAL FKM OPTICAL PRODUCTION FIBRE FIBRE CABLE FACILITIES CAPACITY CAPACITY**

Industry 4.0 standards

Fully automated machinery with robotic operations

Efficient supply chain

Reduced delivery times and SCM cost

Plan to reach by 2022

8 facilities include the manufacturing facility for speciality cables in Dadra, India

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----- Start of picture text ----- Large Scale System Integration expertiseLONGONG HAUL FIBRE NETWORKNationwide IN CITY FTTX DEPLOYMENTfor India’s largest telcoNETWORKETWORK MODERNISATIONODERNISATION for India’s telco & UK Gigabitfor Indian Navy networkRURALURAL CONNECTIVITYONNECTIVITYfor states under BharatNet----- End of picture text -----

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----- Start of picture text ----- LONGONG HAUL FIBRE NETWORKNationwidefor India’s largest telcoNETWORKETWORK MODERNISATIONODERNISATIONfor Indian NavyRURALURAL CONNECTIVITYONNECTIVITYfor states under BharatNetURBAN USE CASESfor smart + safe cities----- End of picture text -----

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----- Start of picture text ----- DATA CENTER INTERCONNECTfor top hyperscalers----- End of picture text -----

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----- Start of picture text ----- Robust ecosystem of virtualised access technologies5G & AccessSolutionsHardware Virtualisation Radio SoftwareZyxel Alpha networksAcademic Alliances Open Networking StandardsMIT | IIT-M RUTGERS© 2021-2022 Sterlite Technologies Limited----- End of picture text -----

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Put together, an E2E capability to integrate future digital networks

LARGE SCALE NETWORKS SYSTEM INTEGRATION 10 Years Network Design & Integration Solutions

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----- Start of picture text ----- VIRTUALIZEDOPTICALINTERCONNECT WIRELESS(SOFTWARE, CLOUD)Digital NetworkIntegrator25 years 5 yearsExtraordinary track record Strategic alliances andGlobally respected product developmentClose to the Edge STL integrates theEDGE At the EdgeSeamless Wired & WirelessCONVERGED Optical & Radio technologiesEnhanced Experiencerequired for theCOMPUTE Connectivity & ComputeAgile, Scalable, Agnostic new-gen digitalDISAGGREGATED Hardware & Softwarenetwork----- End of picture text -----

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1 2 3 4 5 Company Digital network STL’s Future Q1 FY’22 STL Annexure overview growth story right to win growth levers updates financials

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Three focused levers for growth

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----- Start of picture text ----- 2GlobaliseSYSTEM INTEGRATIONTake System Integration business10 yrs of large scale ecosystem integration global and scale in IndiaServices1 Grow 3 BuildSoftware pFTTxOptical Strong Access ORANbusiness SolutionsbusinessOPTICAL WIRELESSHardware25 yrs 5 yrs----- End of picture text -----

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----- Start of picture text ----- Grow Optical BusinessContinued growth in Opticonn market share140 131 8124120 ~6.5% 7100 6 • STL’s market share grew to80 5 ~6.5%60 ~4.5% 4 • Industry optical fibre volume40 3grew by 6.3% YoY to 131 mn20 2 fkm0 1Q1 FY21 Q1 FY22STL OF Market Share OF Global Market ( mn. fkm)----- End of picture text -----

End-to-end optical solutions from STL

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----- Start of picture text ----- • STL recorded double digitrevenue growth in opticalinterconnect business• Opticonn penetration hasincreased----- End of picture text -----

Globalise System Integration Business First order in the UK

The UK Market is growing

£5Bn Project gigabit announced

We are capitalising on it

Our first win

Planned home passes in UK (Mn)

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----- Start of picture text ----- 4436282113.57.542019 2020 2021 2022 2023 2024 2025----- End of picture text -----

£12M

▪ with a Partnership leading provider of telecom solutions in the UK

▪ FTTx mantra to connect homes with broadband in London

▪ Project expected to be completed in the current fiscal year

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Globalise System Integration Business Acquisition of Clearcomm, a network specialist in UK

Clearcomm - an overview

Rationale for acquisition

Clearcomm

STL

End-to-end Network integration in the UK
● Fttx Integration Capability

● Optical Connectivity and Network Design expertise

Provider of end-to-end optical network integration services to telcos in the UK
Long-standing relationships with marquee customers and suppliers

● Data Centre Interconnect Capability ● Access to large global customers

● Diversified Vendor Solid platform base and experienced local to grow the team System Integration business in the UK

A decade of strong presence

Financial profile and key facts

Deal contours

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----- Start of picture text ----- ~£20Mn 26%Revenue (FY20*) 3-Year CAGR~50 UKEmployees Headquarters----- End of picture text -----

First tranche to be acquired at EV of Enterprise ~ £15.5 mn, representing 100% of Value share capital 80% of share capital to be acquired in Structure first tranche. Balance 20% to be acquired in 2023 Financing Mix of internal accruals and debt

Financial year ending in November

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Build Access Solutions

Successful pilot with Chunghwa; Collaboration with Facebook Connectivity

Successfully completed a proof-of-concept for programmable FTTx software solutions
- Collaborating to co-develop general purpose radio units under Evenstar Program
OLT software stack to enable Chunghwa to upgrade its GPON to XGS-PON
STL aims to strengthen its product development, promotion and supply chain through this collaboration

Developing radio unit manufacturing ecosystem in India

Recognized first revenue for Access Solutions in Q1FY’22

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1 2 3 4 5 Company Digital network STL’s Future Q1 FY’22 STL Annexure overview growth story unique proposition growth levers updates financials

Launched an end-to-end access solution: Accellus

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Technology led E2E Solutions

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A wireless solution that bring together micro, macro radio, intelligent controller and orchestrator across CU, DU, RU

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Global recognition

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A leading 5G RAN vendor
An Enabler for enhanced partner ecosystem support in Digital Marketplace
Top 60 Edge computing

companies to watch in 2021 ● Top 100 Tech Challenger

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● Top 10 RAN vendors to watch out for in 2021

Our key account focus is leading to multi-portfolio engagements

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Key Account Management

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Enhanced engagements with current and new accounts resulting in strategic wins

Nurtured existing key accounts

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----- Start of picture text ----- Multi-year LOI for fiberroll out across 10circles----- End of picture text -----

Multi-year strategic partnership to help build new UK full-fiber network

Opened doors to new

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----- Start of picture text ----- Digital transformationfor a leading telco inAfrica----- End of picture text -----

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----- Start of picture text ----- Five year,multi-million contract fordual-band and tri-bandradio units----- End of picture text -----

Increase in participation across Geos with multi-portfolio engagements

Open participation funnel by region (%)

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----- Start of picture text ----- RoW5%Americas13%35% IndiaEMEA 47%Portfolio engagements in key accounts (%)Single40%portfolio Multi60%portfolio----- End of picture text -----

Portfolio engagements in key accounts (%)

Expanding optical capacity to 42 mn. fkm.

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Alliances & Investments

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Solution Centres at global locations with an investment of Rs. 2 bn.

US Upcoming UK Upcoming New OFC New OFC facility, facility 5G R&D lab Gives us the Strengthens our opportunity to increase our position in Europe and share in ~$2 Bn increases proximity to market customers

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Demand driven expansion (Mn. fKm.)

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----- Start of picture text ----- 9 mn----- End of picture text -----

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----- Start of picture text ----- 423318Pre FY’22 Q1FY’22 FY’23----- End of picture text -----

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Increased investments in R&D to develop end to end solutions

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New solutions with an annual R&D investment of 3-4% of STL revenue

Alliances & Investments

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Wi-Fi6 Access 5G Multi-Band Garuda Solution Radio

Comprehensive Open RAN (Radio Access O-RAN compliant, highly Network) radio portfolio power efficient indoor 5G with indoor small cell and small cell solution outdoor Macro radio units

An outdoor Wi-Fi 6 radio unit providing carrierclass connectivity in dense environments

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----- Start of picture text ----- Launched----- End of picture text -----

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----- Start of picture text ----- Delivered----- End of picture text -----

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----- Start of picture text ----- Launched----- End of picture text -----

pFTTx

An SDN, cloud-native solution that brings programmability to last mile networks

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----- Start of picture text ----- Pilot----- End of picture text -----

RIC

RAN Intelligent Controller used to optimize the RAN ecosystem using 3[rd] party xApps/rApps

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----- Start of picture text ----- Development----- End of picture text -----

With a strong global leadership team to drive next phase of growth

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----- Start of picture text ----- ClaudioMega ex-Stephen SandeepChris Szymanski Optotec GirotraRice ex- Prysmian ex- Nokiaex-AT&TLeaders & ExpertsKeithRowleyex- FlomaticSandeepSrinivas Jitendra RajeshDhingraJagdeesan Balakrishnan Gangadhar TechnologistsTop Talent & ex-Cisco ex-Altran ex-Corning ex- SprintCultureVirtualised Optical SystemAccess Interconnect Integration Global team members200+ 90+ 50+32© 2021-2022 Sterlite Technologies Limited----- End of picture text -----

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----- Start of picture text ----- STLFinancials----- End of picture text -----

1 2 3 4 5 Company Digital network STL’s Future Q1 FY’22 STL Annexure overview growth story unique proposition growth levers updates financials

Growing order book

Open Order Book (Rs. bn.)

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----- Start of picture text ----- 112103Q1 FY21 Q1 FY22----- End of picture text -----

Open Order Book Customer Segment wise

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----- Start of picture text ----- Enterprises15%Citizen 56%29% Telcosnetworks1%Cloud----- End of picture text -----

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Order Book Spread (Rs. bn.)

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----- Start of picture text ----- ~ 70~ 429M FY22 FY23 andBeyond----- End of picture text -----

Open Order Book Split

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----- Start of picture text ----- O&M23%77%Capex----- End of picture text -----

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----- Start of picture text ----- Revenue mix moving to geographies and segments of choiceKey Order Wins Customer Segments Geographical DistributionQ1 FY22 Revenues (Rs. bn.) Revenues (Rs. bn.)48 13 48 13•Multi-million dollar deal with alarge European telco forOpticonn•Incremental order for Lead360 from a large Indian Telco•with aStrategic partnershipleading Telecom solutionprovider in UK to connecthomes to broadband bydeploying FTTx MantraFY21 Q1 FY22 FY21 Q1 FY22Telcos Enterprises EMEA America RoWCitizen Networks Cloud India China© 2021-2022 Sterlite Technologies Limited----- End of picture text -----

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----- Start of picture text ----- Project execution running at full-speedpost the pandemic-led challenges of Q1 FY22Navy’s NetworkModern OpticalModernisationNetworkProject Varun 95% Fiber roll out 48%(Indian Navy Project) Completed (Large Indian telco) Completed UKGigabit NetworkFTTH NowTransformative Hyperscale Data (UK) StartedRural digital inclusion CentersBharatnet Projects Data Centre Projects in EMEA92%Mahanet Completed in Nos. < LY > 82Completed27%T-Fibre in Nos. < CY > 13OngoingCompleted----- End of picture text -----

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----- Start of picture text ----- Q1 FY22 performance has been robustRevenue (Rs. bn.) EBITDA (Rs. bn.)14.75 2.7313.14 13.09 2.38 2.3811.60 2.128.761.31Q1 FY21 Q2 FY21 Q3 FY21 Q4 FY21 Q1 FY22 Q1 FY21 Q2 FY21 Q3 FY21 Q4 FY21 Q1 FY22----- End of picture text -----

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----- Start of picture text ----- PAT (Rs. bn.) 1.241.160.870.580.06Q1 FY21 Q2 FY21 Q3 FY21 Q4 FY21 Q1 FY22----- End of picture text -----

Optical business continues to grow
Project execution was below normal due to second wave of the Covid-19 pandemic in India.
We expect to go back to QoQ growth momentum from Q2 FY22 onwards.

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----- Start of picture text ----- With a structure plan to reach Rs. 100 bn. annualised run rateby Q4 FY’23Revenue Bridge ( Rs. bn. )100----- End of picture text -----

59



	Q1 FY22Below normalprojectexecution
Annualisedrun rate atQ4 FY21		*GrowOpticalConnectivityGlobaliseSystemIntegration***	*BuildAccess*SolutionsAnnualisedrun rate atQ4 FY23**

Financials: Abridged Version

P&L (INR Bn.)	Q1 FY’22	Q4 FY’21	Q1 FY’21
Revenue	13.09	14.75	8.76
EBIDTA	2.38	2.73	1.31
*EBITDA %*	18%	19%	15%
Depreciation	0.70	0.61	0.74
EBIT	1.69	2.12	0.57
Interest	0.49	0.53	0.50
Exceptional Item	0.16
PBT	1.35	1.58	0.07
Tax	0.38	0.50	0.04
Net Income after minority interest	1.16	1.24	0.06

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COVID-19 impacted performance and project execution

Committed to deliver our financial targets

Growth Revenue run rate : Rs. 100 bn. per annum by Q4 FY’23

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Capital Net debt/equity < 0.5 by Q4 FY23 Structure

Returns RoCE >20%

Summary

We are in a decade long network creation cycle driven by 5G, FTTx and rural connectivity programs.

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In the last 5 years, our TAM has increased 5x to $40 bn. Now our focus is to increase our market share in the $40 bn. TAM

Our 3 growth levers of grow optical business, globalise system integration and build access solutions have started delivering results .

We are strengthening our foundational capabilities of E2E solutions, KAM approach, Ecosystem Investments and top talent & culture to expand globally.

We plan to reach Rs. 100 bn. revenue run rate by Q4 FY’23 along with Net debt/equity < 0.5 and RoCE > 20%

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1 2 3 4 5 Company Digital network STL’s Future Q1 FY’22 STL Annexure overview growth story unique proposition growth levers updates financials

Corporate structure and shareholding pattern

Corporate structure

As on June 30th, 2021 Only Subsidiaries that are material are disclosed

Shareholding pattern

Source: Company information; Karvy Shareholding Services; Data as of June 30th, 2021

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----- Start of picture text ----- 29.8%Non InstitutionalzHolding 54.4%Promoters andPromoter Group15.8%InstitutionalHolding----- End of picture text -----

*Balance 20% will be acquired over the next few years.

Our Values

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STL Leadership

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Dr. Anand Agarwal is the Group CEO of STL and is passionate about driving technological advancement to impact everyday lives. Recognising the exponential growth in data consumption and shifts in the global technology landscape, Anand has navigated STL from an optical connectivity company to a global leader in end-to-end data network solutions.

Anand is driving STL as an industry leading integrator of data networks with core capabilities in optical connectivity, radio engineering and networking software. Anand was honoured with the prestigious ‘Broadband Infrastructure Leader Award’ in 2016 and “Pathbreaker of the Year” in 2019 for transforming India’s digital infrastructure at the Telecom Leadership Forum.

A PhD in Materials Engineering from Rensselaer Polytechnic Institute and B.Tech from IIT Kanpur, Anand is a hands-on technologist on advanced photonics and programmable networks. He is a firm believer in empowering and transforming lives through innovations in technology.

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@anandagarwal2 @anand1agarwal

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Executive Leadership Team

Ankit Agarwal Executive Director Ankit is driving strategic growth roadmap for STL. Formerly, Ankit was CEO of CSB, which he helped expand over 100 countries and oversaw multiple acquisitions and JV’s.

Mihir Modi Chief Financial Officer Mihir is a seasoned professional with more than 20 years of experience in Finance, M&A, Strategy, and General Management. He joined STL in 2020.

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----- Start of picture text ----- Paul AtkinsonCEO, Connectivity Solutions BusinessPaul is an industry veteran with over 30 years ofexperience and deep expertise in the opticalspace. He joined STL in 2021----- End of picture text -----

KS Rao CEO, Network Services and Software Business Joined STL in 1993 to set up India’s first optical-fibre cable plant KS now leads the Network Services and Software Business and Digital India program.

Chris Rice CEO, Access Solutions Business Chris is a technology expert with 25 years of experience in the telecom sector. He joined STL in 2021

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----- Start of picture text ----- Dr. Badri GomatamGroup Chief Technology OfficerA end to end digital networks technologyexpert, Badri leads core research in opticalcommunications products and networksolutions.----- End of picture text -----

Sandeep Girotra Global Sales Head Sandeep is a seasoned sales leader with over three decades of experience in B2B infrastructure business across ICT, IT, Telecom Infrastructure and Telecom Services..

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----- Start of picture text ----- Anjali ByceChief Human Resource OfficerAs STL grows exponentially, Anjali and herteam are building an agile and culturally strongorganisation by running strong programs ontalent, culture, values and diversity----- End of picture text -----

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----- Start of picture text ----- Akanksha SharmaHead CSR and SustainabilityAkanksha spearheads the company’s vision forCSR and Sustainability and drives a portfolio ofcommunity projects aligned to the UN SustainableDevelopment Goals.----- End of picture text -----

Manish Sinha Chief Marketing Officer With experience in consulting, B2B and B2C marketing, Manish leads brand positioning and customer engagement at a time when the Company is growing exponentially.

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----- Start of picture text ----- Delivering sustainable value for our shareholders50.87 51.54 11.6448.25 11.048.547.8932.0525.945.42FY17 FY18 FY19 FY20 FY21* FY17 FY18 FY19 FY20 FY21*Revenue (Rs. bn.) EBITDA (Rs. bn.)----- End of picture text -----

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----- Start of picture text ----- 5.634.723.342.752.01FY 17 FY 18 FY 19 FY20 FY21 *PAT (Rs. bn. )----- End of picture text -----

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----- Start of picture text ----- 34%30%21% 22%13%FY17 FY18 FY19 FY20 FY21 *ROCE----- End of picture text -----

FY 20 PAT adjusted for exceptional item net of tax

FY 21 performance not comparable because of covid related disruption

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beyond tomorrow

AI assistant

Sterlite Technologies Limited. — Investor Presentation 2021

59411_rns_2021-09-21_81ff2e2a-6a54-41d3-88e7-00ef9e414629.pdf

September 21, 2021

Sub: Outcome of Analyst/ Institutional Investor Meeting

Ref.: Scrip ID - STLTECH/ Scrip Code – 532374

For Sterlite Technologies Limited

Amit Deshpande

Safe Harbour

We Integrate Digital Networks for Our Customers

Our company in numbers

Rs. 48.25 bn.

FY21 Revenue

Patents

Zero

Driven by our purpose to transform millions of lives

ENVIRONMENTALLY

135,000+ MT

100%

25% diversity

97%

50%, 7,500+ tCO2e

Two of the Big Four

800+ MT

1.15M+ m3

3R

TRANSFORMING LIVES

3,500+

1,400+

50

With a strong board and leadership team

Independent Directors

Kumud Srinivasan

Sandip Das

S. Madhavan

B. J Arun

Leading to acceleration of digital connectivity

Internet users

With increased capital, including from new investor groups

Industry experts also recognise the shift

5G, FTTx and rural connectivity are driving up the fibre demand

5x increase in TAM over the last 5 years Now focused on increasing market share of the higher TAM

Industry 4.0 standards

Efficient supply chain

Put together, an E2E capability to integrate future digital networks

Three focused levers for growth

Globalise System Integration Business First order in the UK

The UK Market is growing

We are capitalising on it

Planned home passes in UK (Mn)

Globalise System Integration Business Acquisition of Clearcomm, a network specialist in UK

Clearcomm - an overview

Rationale for acquisition

Clearcomm

STL

Financial profile and key facts

Deal contours

Build Access Solutions

Successful pilot with Chunghwa; Collaboration with Facebook Connectivity

Developing radio unit manufacturing ecosystem in India

Launched an end-to-end access solution: Accellus

Technology led E2E Solutions

Our key account focus is leading to multi-portfolio engagements

Nurtured existing key accounts

Opened doors to new

Open participation funnel by region (%)

Portfolio engagements in key accounts (%)

Expanding optical capacity to 42 mn. fkm.

Solution Centres at global locations with an investment of Rs. 2 bn.

Increased investments in R&D to develop end to end solutions

New solutions with an annual R&D investment of 3-4% of STL revenue

Wi-Fi6 Access 5G Multi-Band Garuda Solution Radio

pFTTx

RIC

With a strong global leadership team to drive next phase of growth

Growing order book

Open Order Book (Rs. bn.)

Open Order Book Customer Segment wise

Order Book Spread (Rs. bn.)

Open Order Book Split

Sterlite Technologies Limited. Investor Presentation 2021