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Butadiene chain
What it is
Butadiene is a C4 olefin produced as a by-product of naphtha cracking, and the essential monomer for SBR, polybutadiene and NBR. Its availability therefore depends on cracker operating rates rather than on rubber demand
India's synthetic rubber capacity is tied directly to upstream cracker investment, which is why speciality grades remain import-dependent
Impact on industries
- Supply is inelastic to rubber demand - butadiene arrives as a co-product, so a shortage cannot be resolved by making more of it alone
- Prices are volatile and crude-linked, transmitting refinery economics into rubber costs with no natural hedge available downstream
- Refinery-petrochemical integration is the structural fix, and India's rising petrochemical intensity should ease domestic monomer availability over time
- It explains why synthetic rubber import dependence persists despite policy intent - the constraint is upstream cracker capacity, not rubber plant capacity