Reliance Sibur Elastomers

What Reliance Sibur Elastomers does

Reliance Sibur Elastomers Private Limited (RSEPL) is a 74.9:25.1 joint venture between Reliance Industries Limited and Russia's SIBUR, established in February 2012 to manufacture synthetic butyl and halogenated butyl rubber in India. The company operates South Asia's first world-scale butyl rubber facility at Jamnagar, Gujarat, with a nameplate capacity of 120,000 metric tonnes per annum. Its product portfolio covers regular butyl rubber (IIR), chlorobutyl rubber (CIIR), and bromobutyl rubber (BIIR) — sold under the "Impramer" brand — serving tire manufacturers, pharmaceutical closure producers, and industrial rubber goods fabricators across South Asia and global export markets.

The underlying technology is based on SIBUR's licensed isobutylene-isoprene polymerization process, adapted and integrated with Reliance's refinery and petrochemical complex at Jamnagar. The facility comprises a regular butyl plant (commissioned ~2019) and a dedicated halogenated butyl plant (commissioned ~2021), the latter being the first of its kind in South Asia. Reliance supplies key feedstocks including isobutylene and methyl chloride from its integrated complex, providing cost-side vertical integration that is unusual for independent butyl rubber producers globally.

Revenue is generated through B2B industrial chemical sales under negotiated, quote-based contracts with downstream manufacturers. The customer base is concentrated among tire OEMs (where butyl rubber is used in inner liners for radial tires), pharmaceutical stoppers and closures, and specialty industrial rubber goods. RSEPL distributes via a combination of direct sales into the Indian market and global distribution channels, with no public pricing model disclosed. The company remains privately held under its two sponsors and operates with 101–250 employees.

Name

Reliance Sibur Elastomers

Legal name

Reliance Sibur Elastomers Private Limited

Website

https://reliancesibur.com

Company type

Private

Founded year

2012

Operating status

Operating

Headcount range

101–250 employees

Short description

Reliance Sibur Elastomers is a Reliance Industries–SIBUR joint venture operating South Asia's first world-scale butyl rubber plant (120,000 MTPA) at Jamnagar, producing IIR, CIIR, and BIIR under the Impramer brand for tire, pharmaceutical closure, and industrial rubber customers.

Ownership category

akta.pro rank

Product category

Synthetic Rubber Manufacturing

NAICS

Synthetic Rubber Manufacturing (325212), Rubber Product Manufacturing (3262), Resin and Synthetic Rubber Manufacturing (32521)

SIC

Plastic Materials, Synth Resins & Nonvulcan Elastomers (2821), Industrial Organic Chemicals (2860)

akta.pro primary industry

Elastomers & Synthetic Rubber Polymer Manufacturing (SBR, BR, NBR, EPDM, Silicone base polymers) (IMANAAAD)

akta.pro secondary industries

General-Purpose Rubber Compounds (NR/SBR/BR/EPDM) (IMANAJAA), Synthetic Rubber & Elastomer Feedstocks (SBR, BR, NBR, EPDM) (IMAEADAJ)

Keywords

• Synthetic rubber manufacturing
• Butyl rubber production
• Halogenated butyl rubber
• Elastomer manufacturing
• Industrial rubber materials

Headquarters

HQ city

Mumbai

HQ country

India

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Infrastructure, Personnel, Technology or R&D, Marketing or Sales

Revenue model

1. Synthetic Rubber Sales: Revenue generated from manufacturing and selling butyl rubber and halogenated butyl rubber products under the Impramer brand. Products include regular butyl rubber (IIR), chlorobutyl rubber (CIIR), and bromobutyl rubber (BIIR). The company operates a 120,000 metric tonnes per annum facility.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Reliance Sibur Elastomers manufactures and sells butyl rubber (IIR) and halogenated butyl rubber (CIIR and BIIR) under the Impramer brand at its 120,000 MT per annum facility in Jamnagar, Gujarat. Products are produced from High Purity iso-Butylene (HPIB) sourced from Reliance's adjacent refinery and are sold to tire manufacturers, pharmaceutical packaging companies, and industrial manufacturers in India and globally.

Product overview

Reliance Sibur Elastomers Private Limited (RSEPL) operates as South Asia's first world-scale butyl and halogenated butyl rubber production facility. The company manufactures a portfolio of Impramer-branded synthetic rubber products including standard Butyl Rubber (IIR), Chlorobutyl Rubber (CIIR), and Bromobutyl Rubber (BIIR) with a combined capacity of 120,000 metric tonnes per annum at their Jamnagar, Gujarat facility. The products are derived from High Purity iso-Butylene (HPIB) supplied from Reliance's adjacent refinery. The Impramer product line serves critical applications in automotive (tires, hoses, seals), pharmaceutical (closures), industrial (rubber sheets, roofing membranes), and other manufacturing sectors.

Differentiator

Problem solved

Functional benefit

Brands

• Impramer: Product brand for butyl rubber and halogenated butyl rubber products including Impramer Butyl Rubber (IIR), Impramer Chlorobutyl Rubber (CIIR), and Impramer Bromobutyl Rubber (BIIR).

Products and services

• Impramer Butyl Rubber (IIR 1675) Impramer Butyl Rubber (IIR) is a synthetic polymer copolymer of isobutylene with isoprene offering superlative air-barrier performance with superior flex properties. Used for automotive inner tubes, tire curing bladders, pharmaceutical closures, and sports ball bladders.
• Impramer Chlorobutyl Rubber (CIIR 1139) Impramer Chlorobutyl Rubber is produced by chlorination of regular butyl rubber, maintaining gas impermeability while enabling co-vulcanization with general purpose rubbers. Used for heavy duty inner tubes, tubeless tire inner liners, curing envelops, and storage tank linings. IMPRAMER C 1139 grade contains 1.15-1.35 wt% chlorine.
• Impramer Bromobutyl Rubber (BIIR 2232, 2239, 2247) Impramer Bromobutyl Rubber is a derivative of butyl rubber produced by bromination, offering higher reactivity than chlorobutyl rubber with a versatile curing system. Used in applications requiring gas impermeability, high heat, weather and chemical resistance, including pharmaceutical closures and hoses. Available in three grades: B 2232 (Mooney 28.0-36.0), B 2239 (Mooney 36.0-42.0), and B 2247 (Mooney 41.0-51.0), all with 1.60-2.00 wt% bromine content.

Quantifiable outcome

• South Asia's first halogenated butyl rubber production facility
• +1 more outcomes

Named customers3 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Two partnerships are on record, tiered core.

• SIBURcoreStrategic or Co-development Partner · 21 February 2012SIBUR, the Russian leader in polymers and rubbers, formed a joint venture with Reliance Industries in February 2012. SIBUR holds 25.1% stake while Reliance holds 74.9%. SIBUR provides technology and expertise in synthetic rubber manufacturing. The joint venture created South Asia's first butyl and halogenated butyl rubber production facility at Jamnagar, India.
• Reliance Industries LimitedcoreStrategic or Co-development Partner · 21 February 2012Reliance Industries Limited (RIL), India's largest private sector company, holds 74.9% stake in the joint venture. RIL provides feedstock supply (High Purity iso-Butylene) from its refinery with 1.4 million barrels per day capacity, manufacturing infrastructure, and operational expertise. RIL ranks 88th in Fortune Global 500 by revenues (2023).

Scale indicators4 records

Recent moves12 records

Expansion highlights3 records

Direct peers

• Nizhnekamskneftekhim: Russia's largest synthetic rubber producer and a sister entity to RSEPL JV partner SIBUR. Operates large-scale butyl rubber (IIR) and halobutyl production, serving the same product/market overlap and sharing technology lineage with SIBUR.
• ARLANXEO: ARLANXEO (a Saudi Aramco / Lanxess joint venture) operates the legacy Lanxess butyl rubber business, producing Baypren and other halobutyl grades. Directly comparable synthetic rubber product portfolio serving identical automotive and pharma end-markets as RSEPL.
• JSR Corporation: Japanese chemical company with a substantial synthetic rubber business including butyl rubber grades. Competes with RSEPL for global tire and industrial customers, particularly across Asia-Pacific tire manufacturers and Japanese OEMs.
• ExxonMobil Chemical: ExxonMobil is one of the world's largest butyl rubber producers, manufacturing both regular IIR and halogenated butyl rubber (chlorobutyl and bromobutyl). Competes head-to-head with RSEPL globally across tire inner liner, pharma closure, and industrial rubber applications, and is the historical incumbent that RSEPL's domestic import substitution strategy targets.
• Kumho Petrochemical: South Korean synthetic rubber producer with broad product portfolio including butyl rubber for tire and industrial applications. Asian competitor serving many of the same tire OEMs that RSEPL targets for Indian market share.

Others

• SIBUR: RSEPL's 25.1% JV partner and Russia's largest polymers and rubbers producer. While also a synthetic rubber competitor globally, SIBUR's relevance here is as the technology and feedstock partner transferring capability into RSEPL's Jamnagar facility.
• Reliance Industries Limited: RSEPL's 74.9% parent. While not a direct butyl rubber competitor at the JV level, Reliance's petrochemicals segment produces competing polymer/rubber chemistries and supplies the HPIB feedstock that powers RSEPL - making the group an integrated benchmark for petrochemical economics.

Broad incumbents

• China Petroleum & Chemical Corporation (Sinopec): Sinopec is the world's largest petrochemical company and produces butyl rubber among many other synthetic rubber grades through subsidiaries. As the Chinese supplier implicated in RSEPL's anti-dumping complaint, Sinopec is both a major competitive threat and reference pricing benchmark for Asian markets.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/rsepl

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Reliance Sibur Elastomers