India-based chemicals and polymers firm, SRF, recorded a 7.3% fall in fourth-quarter profit, impacted by margin pressure from the polypropylene and polyethylene films used in its packaging film business. The cost of materials consumed increased 8.8%, while lower sales in its technical textiles segment, caused by weak demand, cut revenue by more than 13%. Slowing demand and macroeconomic headwinds are adding to rising raw materials costs and shrinking product prices as challenges for the chemicals sector. The chemicals segment accounts for more than half of SRF's overall business.