According to Hui Chong, CNPC Chemical increased its styrene-butadiene rubber (SBR) RMB 400 (USD62 or Euro 44) per metric ton, and currently the styrene-butadiene rubber non-oil grades 1502, 1500, 1500E and 1502E is RMB 28,000.00 per metric ton, and oil extended styrene-butadiene rubber grade 1712 is RMB 24,100.00/MT; meanwhile the emulsion-polymerized styrene butadiene rubber (E-SBR) grade 2557A is RMB 24,200.00 per metric ton.