Physical Rubber prices extended gains on Tuesday due to persistent weather-driven supply anxieties in Southeast Asia. However, lower crude oil prices made petroleum-based synthetic rubber more affordable, reducing the substitution demand for natural rubber.
Spot prices for the RSS-4 variety rose to Rs 295/kg to its previous closing of Rs 293.50/kg; while the RSS-5 variety gained to Rs 289/kg to its previous closing of Rs 287.50/kg.